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A Scientific Search for Visitation
from Extraterrestrial Probes

A New Search Model in the Quest to find ETI



Organization for SETV Research



This page was last updated on Thursday, December 08, 2003.

References to Pertinent Works

    We encourage you to educate yourself on this subject by obtaining and reading the works referenced here. The information contained in these pertinent works embodies what SETV is all about and had a major influence on the formulation of the SETV search model.

    Journal and Periodical Papers Abstract Index  (click to read abstract)

  • Arkhipov, Alexey V., Bioastronomy: The Search for Extraterrestrial Life - The Exploration Broadens

  • Arkhipov, Alexey V., Fast Moving Lunar Phenomena

  • Arkhipov, Alexey V., A Search For Alien Artifacts On The Moon

  • Arkhipov, Alexey V., Invasion Effect On The Moon

  • Arkhipov, Alexey V., Earth-Moon System As A Collector Of Alien Artefacts

  • Baker, Robert M. L., Jr. Observational Evidence of Anomalistic Phenomenon

  • Bearden, T. E., A mind/brain/matter model consistent with quantum physics and UFO phenomena

  • Betinis, E. J., On ETI Alien Probe Flux Density

  • Bracewell, Prof. Ronald N., Communications from Superior Galactic Communities

  • Bramley, William, Can the UFO Extraterrestrial Hypothesis and Vallee Hypotheses Be Reconciled?

  • Calder, Nigel, Spaceships of the Mind

  • Cocconi, Giuseppe, Morrison, Philip, Searching for Interstellar Communications

  • Deardorff, J. W., Possible ExtraTerrestrial Strategy for Earth

  • Devito, C. L., Oehrle, R. T., A Language Based on the Fundamental Facts of Science

  • Fiebag, Johannes, Communication with ExtraTerrestrial Intelligences - Possibilities, Chances and
    Perspectives with Special Attention given to the Leaky-Embargo Hypothesis

  • Forward, Robert, L., Feasibility of Interstellar Travel: A Review

  • Freitas Jr., Robert A., The Search for Extraterrestrial Artifacts (SETA)

  • Freitas, R. A., The Search for Extraterrestrial Artifacts (SETA)

  • Freitas Jr., Robert A., A Self-Reproducing Interstellar Probe

  • Freitas Jr., Robert A., Interstellar Probes: A New Approach to SETI

  • Freitas, R. A., The Case for Interstellar Probes

  • Freitas, R. A., Extraterrestrial Intelligence in the Solar System: Resolving the Fermi Paradox
  • ,
  • Freitas, R. A., and Valdes, F., A Search for Natural or Artificial Objects Located at the Earth-Moon Libration Points

  • Freitas, R. A., and Valdes, F., A Search for Objects Near the Earth-Moon Lagrangian Points

  • Valdes, F., and Freitas, R. A., Comparison of Reproducing and Non-Reproducing Starprobe Strategies for Galactic Exploration

  • Freitas, R. A. Jr., If They Are Here, Where Are They? Observational and Search Considerations

  • Freitas, R. A, Jr. There Is No Fermi Paradox

  • Geoffrey A., Landis, The Fermi Paradox: An Approach Based on Percolation Theory

  • Hart, M. H. , An Explanation for the Absence of Extraterrestrials on Earth

  • Haviland, R. P., On Communications with Extra-Terrestrial or Alien Intelligences

  • Henry, Richard C., UFOs and NASA

  • Hynek, J. Allen, Unusual Aerial Phenomena

  • Hynek, J. Allen, The Emerging Picture of the UFO Problem

  • Kardashev, Nikolai S., Transmission of Information by Extraterrestrial Civilizations

  • Kelleher, Colm A., Retrotransposons as Engines of Human Bodily Transformation

  • Kingsley, S. A., Amateur Optical SETI

  • Klaes, Larry, Where Are They?

  • Kober, C. L., Inspection and Interception Methods of Defense Against Hostile Alien Satellites

  • Kuiper, T.B.H, and Morris, M., Searching for Extraterrestrial Civilizations

  • Kuiper, T.B.H, Our extraterrestrial heritage: From UFO's to space colonies

  • Kuiper, Thomas, B.H, and (JPL) and Brig, Glen David (Heritage Research), Searching for Extraterrestrial Civilizations

  • Lawton, A. T., Infrared Interstellar Communication

  • Martin-Smith, Dr Michael, BSc, MRCGP, FBIS A Cause and Solution for Fermi's Paradox

  • Martin, Anthony, B., Bond, Allen Is Mankind Unique in the Galaxy?

  • McLaughlin, William, I., A SETI Experiment

  • Millis, Mark, Challenge to Create the Space Drive

  • Mishev, D. N. et al., New Generation of Spectrometers for Measurement of Spectral Reflective Characteristics

  • Matloff, Gregory L., Mallove, Eugene F., Alien Starship Detectability - Bursters and Skidmarks

  • National Astronomy and Ionosphere Center --The Staff at the, The Arecibo Message of November, 1974

  • Papagiannis, M. D., Are We Alone or Could They be in the Asteroid Belt?

  • Phillips, Ted R., Jr., Unidentified Flying Objects: The Physical Evidence

  • Poher, Claude, Centre National d'Etudes Spatiales, (CNES), Vallee, Jacques, Center for UFO Studies, (CUFOS), Basic Patterns in UFO Observations

  • Power, T. S., Inspection of Alien Satellites

  • Puthoff, Harrold E., Ph.D. physics CIA-Initiated Remote Viewing Program at Stanford Research Institute

  • Regis, E., Jr., ExtraTerrestrials: Science and Alien Intelligence

  • Robinson, G. S., Space Law-Earth Law - Recognizing and Accepting the Distinction

  • Robinson, G. S., Ecological Foundations of Haley's Metalaw

  • Ross, M., The Likelihood of Finding Extraterrestrial Laser Signals

  • Ross, M., Design of an Optical Receiver for Space Signals

  • Sagan C. and Page, T. UFOs - A Scientific Debate --Anomalistic Observational Phenomena

  • Santoli, Salvatore, How far could we make ourselves understood by the Andromedans?
    - An evolutionary cybernetic problem in hierarchical dynamics

  • Saunders, D. R., Extrinsic Factors in UFO-Reporting

  • Schenkel, P., Legal Frameworks for Two Contact Scenarios

  • Schwartzman, D. W., The absence of extraterrestrials on earth and the prospects for CETI,

  • Seeger, C. L. (NASA Ames Research Center) The Recognition of Extraterrestrial Artificial Signals

  • Sherwood, Brent, Engineering Planetary LASERs for Interstellar Communication

  • Stride, Scot, L., An Instrument-Based Method (SETV) to Search for Extraterrestrial Interstellar Robotic Probes

  • Stull, M.A., On the Significance of the Apparent Absence of Extraterrestrials on Earth

  • Sturrock, Peter A., Carlson, J.B., Stanford workshop on extraterrestrial civilization - Opening a new scientific dialog - Conference Report

  • Sturrock, P. A., et al, Research Report: Physical Evidence Related to UFO Reports

  • Sturrock, Peter, A., Extraterrestrial Intelligent Life

  • Sturrock, Peter, A., An Analysis of the Condon Report on the Colorado UFO Project

  • Sturrock, Peter, A., Report on a Survey of the Membership of the American Astronomical Society Concerning the UFO Problem

  • Sturrock, Peter A., Uncertainty Estimates in the Number of Extraterrestrial Civilizations

  • Sturrock, Peter A., Carlson, J. B., Stanford workshop on extraterrestrial civilization - Opening a New Scientific Dialog

  • Sturrock, Peter A., Science and the Weighing of Evidence

  • Swords, .D., A guide to UFO Research

  • Teodorani M., Physics from UFO Data

  • Teodorani M., Physical Data Acquisition and Analysis of Possible Flying Extraterrestrial Probes by using Opto-Electronic Devices

  • Teodorani M. and Strand E. P. Experimental Methods for Studying the Hessdalen-Phenomenon in the light of the Proposed Theories: a Comparative Overview

  • Tipler, F. J., Extraterrestrial Intelligent Beings do not Exist

  • Tough, Allen, Small Smart Interstellar Probes

  • Tough, Allen, What Role will Extraterrestrials play in Humanity's Future

  • Troitskii, V. S., On the Regularities of Development of ExtraTerrestrial Civilizations and the Search Strategy

  • Urner Liddel, Phantasmagoria or Unusual Observations in the Atmosphere*

  • Vallee, J. P., and M. Simard-Normandin, Observational Search for Polarized Emission from Space Vehicles/Communication Relays Near the Galactic Centre

  • Vallee, Jacques, Five Arguments Against the Extraterrestrial Origin of Unidentified Flying Objects

  • Vallee, Jacques, Towards a Second-Degree Extraterrestrial Theory of UFOs: A Response to Dr. Wood and Prof. Bozhich

  • Vallee, Jacques F., Estimates of Optical Power Output in Six Cases of Unexplained Aerial Objects with Defined Luminosity Characteristics

  • Wood, R., The Extraterrestrial Hypothesis is Not That Bad

  • Yamakawa, Hiroshi Extraterrestrial Physical Review, The White Sands Incident




  • Books and Manuscripts Index  (click to read description)

  • Arkhipov, Alexey V., SELENITES: an introduction to problem of searching for traces of extraterrestrial intelligence (ETI) on the Moon

  • Boyce, Chris, Extraterrestrial Encounter: A Personal Perspective

  • Bracewell, Ronald N., The Galactic Club: Intelligent Life in Outer Space

  • Condon, Edward U. et al, Scientific Study of Unidentified Flying Objects

  • Hendry, Allen The UFO Handbook - A Guide to Investigating, Evaluating and Reporting UFO Sightings

  • Hill, Paul R. UNCONVENTIONAL FLYING OBJECTS, A Scientific Analysis

  • Long, Greg, Examining the Earthlight Theory, The Yakima UFO Microcosm

  • Morrison, Phillip; Billingham, John; Wolfe, JohnThe Search for Extraterrestrial Intelligence

  • Rutledge, Harley, D., PROJECT IDENTIFICATION, The First Scientific Field Study of UFO Phenomena

  • Von Ludwiger, Illobrand Best UFO Cases - Europe

  • Zuckerman, Ben; Hart, Michael, H. Extraterrestrials - Where are They?

  • Fawcett , Bill, (ed.)Making Contact: A Serious Handbook For Communicating With ExtraTerrestrials





  • Online Articles and Papers Index  (click to read description)

    The articles contained here are reprinted in their entirety by permission of the orginal authors, or the journal in which the paper was published. These articles remain as copyrighted material, and may only be accessed here for personal viewing. If you desire to reproduce these articles, you must seek permission from the original author or periodical.


  • Bracewell R. N., et al, Interstellar Communication: Scientific Perspectives

  • Steel, Duncan, SETA and 1991 VG

  • Declaration of Principles Concerning Activities Following The Detection of ExtraTerrestrial Intelligence

  • Michaud, Michael A. G. An International Agreement Concerning The Detection Of ExtraTerrestrial Intelligence

  • Michaud, Michael A. G., Billingham, John, and Tarter, Jill, A Reply From Earth?

  • Frietas, Robert A., The Search For ExtraTerrestrial Artifacts (SETA)


  • WebMaster's Note:
    Mr. Robert A. Freitas Jr. was, in the 1980s, the world's leading thinker and
    writer about the search for extraterrestrial probes. He is one of the few
    scientists ever to actively look for such probes. He conducted the first
    search for probes and other extraterrestrial artifacts in Earth orbit and
    at a Lagrange point, he wrote extensively about the rationale for such searches,
    and he conducted the first radio SETI search at the tritium line. In the 1990s
    he has turned his attention to the closely related topic of nanotechnology
    and is currently completing the first volume of a 3-volume work on nanomedicine.

  • Aviation Week & Space Technology, Northrop Studying Sonic Boom Remedy








  • Journal and Periodical Papers Abstracts


    1. The Search For ExtraTerrestrial Artifacts (SETA)


    2. Freitas Jr., Robert A., The Search for Extraterrestrial Artifacts (SETA),
      Xenology Research Institute, 8256 Scottsdale Dr., Sacramento, Ca, 95828, USA
      and
      Valdes, Francisco, Kitt Peak National Observatory, National Optical Astronomy Observatories
      P.O. Box 26732, Tucson, Az, 85726, USA
      Acta Astronautica, Vol. 12, No. 12, pp. 1027-1034, 1985, Great Britain

      Abstract - The rationale for the use of interstellar artifacts by intelligent life in the universe is described. The advantages of using interstellar probes as a means of exploration and communication are presented and shown to be significant enough to counter the time, energy, and technology arguments generally raised against contact via extraterrestrial artifacts. Four classes of artifacts are defined: Those seeking contact, those seeking to avoid contact, those intended to provide a passive technological threshold for detection, and those for which detection is irrelevant. The Search for ExtraTerrestrial Artifacts (SETA) is based on the latter two classes. Under the assumption that an extraterrestrial probe will be interested in life in our solar system, a near-Earth search space is defined. This search space is accessible to us now with ground and satellite observing facilities. The current observational status of SETA is reviewed and contrasted with the achievable detection limits for the different parts of the search space.


    3. The Search For ExtraTerrestrial Artifacts (SETA)


    4. Freitas, R. A., The Search for Extraterrestrial Artifacts (SETA),
      Xenology Research Institute, 8256 Scottsdale Dr., Sacramento, CA, 95828, USA
      Journal of the British Interplanetary Soc., Vol. 36, pp. 501-506, 1983

      Abstract - The Artifact Hypothesis states that an advanced extraterrestrial intelligence has undertaken a long-term programme of galactic exploration via the transmission of material artifacts. An attempt to verify this hypothesis experimentally, the search for extraterrestrial artifacts (SETA), is proposed to detect such evidence in the Solar system by telescopic, radar, infrared, direct probe, or other available means.


    5. A Self-Reproducing Interstellar Probe


    6. Freitas Jr., Robert A., A Self-Reproducing Interstellar Probe
      100 Buckingham Drive, No. 253, Santa Clara, California, 95051, USA
      Journal of the British Interplanetary Society, Vol.33, pp.251-264, 1980

      Abstract - Bracewell [5, 6] and Frietas [7 ] have discussed the possible superiority of interstellar probes in missions of galactic exploration and recently Calder [8] and Boyce[9] have raised the issue of self-organizing machines in related contexts. In this paper a preliminary sketch of a self-reproducing starprobe is presented, with generation time ~103 years given a ~10-fold improvement in current human space/manufacturing technology.


    7. Interstellar Probes: A New Approach to SETI

      Freitas Jr., Robert A., Interstellar Probes: A New Approach to SETI
      Journal of the British Interplanetary Society, Vol. 33, pp.103-109, 1980.

      Abstract --Interstellar transmissions via energy-markers (photons) or matter-markers (probes) appear to be energetically indistinguishable alternatives for advanced technical societies. Since only Type II and Type III civilizations realistically can afford beacons or starprobe technology, alternative distinguishability criteria suggest the possible superiority of intelligent artifacts for contact and communication missions among extraterrestrial cultures. A balanced, more cost-effective Search for ExtraTerrestrial Intelligence (SETI) strategy is proposed.


    8. The Case for Interstellar Probes

      Freitas, R. A., The Case for Interstellar Probes,
      Journal of the British Interplanetary Soc., Vol. 36, pp. 490-495, 1983

      Abstract - Interstellar spacecraft are superior to electromagnetic wave propagation for extrasolar exploration and communication. The search for extraterrestrial intelligence (SETI) should include a search for extraterrestrial probes. Arguments favouring, and various traditional objections to, interstellar communications via messenger probe are critically reviewed.


    9. Extraterrestrial Intelligence in the Solar System: Resolving the Fermi Paradox

      Freitas, R. A., Extraterrestrial Intelligence in the Solar System: Resolving the Fermi Paradox,
      Journal of the British Interplanetary Society, Vol. 36, pp. 496-500, 1983.

      Abstract - The assertion that extraterrestrial intelligences (ETI) do not exist based on the apparent contradictions inherent in the Fermi Paradox, rests upon an unproven and untenable presumption: That ETI are not now present in the Solar System. Most advanced civilisations also would be either invisible or unrecognisable using current human observational methods, so millions of advanced societies may exist and still not be directly detectable by us. Thus the Fermi Paradox cannot logically be raised as an objection to the existence of ETI until these major observational deficiencies have been corrected.


    10. A Search for Natural or Artificial Objects Located at the Earth-Moon Libration Points

      Freitas, R. A., and Valdes, F., A Search for Natural or Artificial Objects Located at the Earth-Moon Libration Points,
      Icarus, Vol. 42, pp. 442-447, 1980.

      Abstract - Photographs in the vicinity of the Earth-Moon triangular libration points L4 and L5, and of the solar-synchronized positions in the associated halo orbits (A. A. Kamel, 1969, Ph.D. dissertation, Stanford University), were made during August-September 1979, using the 30-in Cassegrain telescope at Leuschner Observatory, Lafayette, California. An effective 2° square field was covered at each position. No discrete objects, either natural or artificial, were found. The detection limit was about 14th magnitude. The present work extends traditional SETI observations to include the search for interstellar probes (R. A. Freitas, Jr., 1980, J. Brif. Interplanet. Soc. 33, 95-100).


    11. A Search for Objects Near the Earth-Moon Lagrangian Points

      Freitas, R. A., and Valdes, F., A Search for Objects Near the Earth-Moon Lagrangian Points,
      Icarus, Vol. 53, pp. 453-457, 1983.

      Abstract - Abstract - A photographic search of the five Earth-Moon Lagrangian positions included the solar-synchro-nized positions in the stable L4/L5 libration orbits, the potentially stable nonplanar orbits near L1/L2, Earth-Moon L3, and also L2 in the Sun-Earth system. Observations using the 61-cm Burrell Schmidt telescope at the Warner and Swasey Observatory, Kitt Peak Station, spanned 60° along the lunar orbital plane x 5° around Earth-Moon L5, 48" x 5° around L4, 25° x 13° around L3, 15° x 24° around the Moon (LI/L2). and 14° x 14° around Sun-Earth L2. Limiting magnitude for the detection of libration objects near L3, L4, and L5 was 17-19th magnitude, 10-18th magnitude for L!/L2 plates, and 14-16th magnitude for Sun-Earth L2. No natural or artificial objects were found. An automated search of selected priority plates was attempted using the Faint Object Classification and Analysis System (FOCAS) software package.


    12. Comparison of Reproducing and Non-Reproducing Starprobe Strategies for Galactic Exploration

      Valdes, F., and Freitas, R. A., Comparison of Reproducing and Non-Reproducing Starprobe Strategies for Galactic Exploration, Journal of the British Interplanetary Society, Vol. 33, pp. 402-408, 1980

      Abstract - Bracewell has suggested the use if nonreproducing messenger probes for interstellar exploration, and Freitas has examined the feasibility of self-reproducing automated devices in the same context. The present paper compares reproducing and nonreproducing strategies for missions of interstellar and galactic discovery. Self-reproducing probes are found to be the method of choice for active exploration programs lasting >106 years, involving searches of >106 target stars to distances > 1000 light-years in the Galactic Disk, and are superior to one-shot "Bracewell Probes" for searches of >103 stars to distances > 100 light-years in the Galactic Disk. Any nonreproducing alien probes discovered in the Solar System during the normal course of future SETI research would most likely have been sent by extraterrestrial civilizations located within a approx. 1000 light-year radius of the Sun, whereas any self-reproducing devices similarly detected probably originated far outside the exploration sphere.


    13. If They Are Here, Where Are They? Observational and Search Considerations

      Freitas, R. A. Jr.,If They Are Here, Where Are They? Observational and Search Considerations
      Icarus Vol. 55, pp. 337-343, 1983

      Abstract - This paper discusses observational considerations in a search for extraterrestrial intelligence (SETI) program to detect extraterrestrial messenger probes in the solar system. Observable artifacts will most likely be found in a search space consisting of geocentric, selenocentric, Earth-Moon Libration, and Earth-Moon Halo orbits, which may be searched to a limiting artifact size of 110 m (pv = 0.1) using existing or foreseeable instrumentation.


    14. There Is No Fermi Paradox

      Freitas, R. A, Jr. There Is No Fermi Paradox
      Icarus, Vol. 62, pp. 518-520, 1985.

      Abstract - The "Fermi Paradox," an argument that extraterrestrial intelligence cannot exist because it has not yet been observed, is a logical fallacy. This "paradox" is a formally invalid inference, both because it requires modal operators lying outside the first-order propositional calculus and because it is unsupported by the observational record.


    15. Anomalistic Observational Phenomena (AOP)

      Sagan C. and Page, T. UFOs - A Scientific Debate,
      Cornell University Press, Ithaca, New York. p. 190, 1972.

      Chapter 8 entitled: Motion Pictures of UFOs by R. M. L. Baker Jr.

      Chapter Introductory Statement - "The data that I have reviewed and analyzed since 1954 lead me to believe that there is substantial evidence to support the claim that an unexplained phenomenon-or phenomena-is present in the environment of earth, but that it may not be "flying", may not always be "unidentified", and may not even take the form of substantive "objects". I would, therefore, prefer the label "Anomalistic Observational Phenomena" rather than "UFO". In this report I will concentrate on the anomalistic observational phenomena as depicted in motion pictures, and will not attempt to support any particular hypothesis as to the source of the phenomenon."


    16. Bracewell Probes

      Bracewell, Prof. Ronald N., Communications from Superior Galactic Communities, Radioscience Laboratory, Stanford University, California
      Nature, Vol. 186, No. 4726, pp. 670-671, 1960.
      Reprinted in A.G. Cameron (ed.), Interstellar Communication,
      W. A. Benjamin, Inc., New York, pp. 243-248, 1963

      Introductory paragraph - Since Morrison and Cocconi published the suggestion that there might be advanced societies elsewhere in the Galaxy, superior to ourselves in technological development, who are beaming transmissions at us on a frequency of 1,420 MHz/s., Drake has described equipment under construction to look for such transmissions. The confidence necessary to commence actual observations is based on an opinion that planets are a common by-product of the formation of starts. One argument among others is that stars of spectral type later than F5 have low angular momenta, just as the Sun has; and in the case of the Sun we know that it is because the momentum (98 per cent of it) resides in planets. Of the thousands of millions of planets in the Galaxy likely to be situated similarly to the Earth in relation to their star, it is hard to dismiss the possibility that some have more advanced civilizations than ours. In view of the acceleration with which technology develops, advanced societies could be incredibly more advanced.


    17. An Explanation for the Absence of Extraterrestrials on Earth

      Hart, M. H. , An Explanation for the Absence of Extraterrestrials on Earth,
      Quarterly Journal of the Royal Astronomical Society, Vol. 16, pp. 128-135, 1975.

      Abstract - Four categories of facts are explored for explaining the lack of observable extraterrestrial beings (ETs) on earth. The physical reasons are suggested to be the long travel times required by sublight-velocity spaceships, a problem that may be overcome by beings that live several millennia or that can be stored and reproduced from zygotes on arrival. Also, the energy requirements for interstellar travel, though large, are not an insurmountable difficulty. Sociologically, it is suggested that ETs have no interest in space travel, or they may have destroyed themselves with atomic wars, or the earth is being used as a wildlife preserve. No procedures exist to test these hypotheses, however. The consideration that ETs have not yet had time to find earth is discounted by calculations that show that another intelligent species in the Galaxy would have found earth if their space exploration efforts began at least 2,000,000 yr ago. It is concluded that if the earth has not yet been visited, then colonization of the Galaxy will most probably be done by humans, who may have the first advanced civilization in the Galaxy.


    18. Searching for Extraterrestrial Civilizations

      Kuiper, T.B.H, and Morris, M., Searching for Extraterrestrial Civilizations,
      Science, Vol. 196, pp. 616-621, 1977

      A concerted, national, and perhaps international, effort to find radio signals from extraterrestrial civilizations (ETC's) will probably be started within the next few years. It will be the outcome of nearly 20 years of smaller searches at various radio observatories (1) and about a decade of preliminary planning for a dedicated facility (2). One major study conducted by Stanford University and NASA Ames Research Center (3) resulted in the design for an array of up to 1000 antennas of 100-meter aperture. The search for extraterrestrial intelligence (SETI) has bee identified in "Outlook for Space" (4) as one of the possible future tasks for the National Aeronautics and Space Administration (objective 125) and the large receiving array as one of the prerequisites (system 4010).

      1. For a review of various search programs that have been conducted, see C. Sagan and F. Drake,
      Sci. Am. 233,83 (May 15)
      2. Final Report of the Science Workshop on Interstellar Communication, NASA Spec. Publ., in preparation.
      3. Project Cyclops (Report CR114445, NASA Ames Research Center, Moffett Field, Calif., 1971)
      4. "Outlook for Space, " NASA Spec. Publ. SP-386 (1976)


    19. Searching for Extraterrestrial Civilizations

      Kuiper, T.B.H, Our extraterrestrial heritage: From UFO's to space colonies,
      Proceedings of the Joint Symposium, Los Angeles, Calif., January 28, 1978. (A78-49776 22-12) Los Angeles, American Institute of Aeronautics and Astronautics, Inc., , pp. 25-31, 1978

      Abstract - The evolution of organization in the universe is considered. It is proposed that a circum-solar community, and eventually a galactic community represent the next levels of organization in this evolutionary process. Possible strategies for detecting other technological civilizations in the galaxy are discussed.


    20. Searching for Extraterrestrial Civilizations

      Kuiper, Thomas, B.H, and (JPL) and Brig, Glen David (Heritage Research), Searching for Extraterrestrial Civilizations,
      American Journal of Physics (ISSN 0002-9505), Vol. 57, pp. 12-18, Jan. 1989

      Abstract - This resource letter provides a guide to the literature about intelligent life beyond the human sphere of exploration. It offers a starting point for professionals and academics interested in participating in the debate about the existence of other technological civilizations or in SETI. It can also serve as a reference for teaching. Several extensive bibliographies are cited.


    21. Infrared Interstellar Communication

      Lawton, A. T., Infrared Interstellar Communication,

      Spaceflight, Vol. 13, No. 3, pp. 83-85, 1971

      Abstract -


    22. SETA and 1991 VG

      Steel, Duncan, SETA and 1991 VG
      The Observatory, Vol. 115, No. 1125, pp. 78-83, April 1995

      Abstract - A ~ 10-metre object on a heliocentric orbit, now catalogued as 1991 VG, made a close approach to the Earth in 1991 December, and was discovered a month before perigee with the Spacewatch telescope at Kitt Peak. Its very Earth-like orbit and observations of rapid brightness fluctuations argue for it being an artificial body rather than an asteroid. None of the handful of man-made rocket bodies left in heliocentric orbits during the space age have purely gravitational orbits returning to the Earth at that time, and in any case the a priori probability of discovery for 1991 VG was very small, of order one in 100,000 per anmun. In addition, the small perigee distance observed might be interpreted as an indicator of a controlled rather than a random encounter with the Earth, and thus it might be argued that 1991 VG is a candidate as an alien probe observed in the vicinity of our planet.


    23. Are We Alone or Could They be in the Asteroid Belt?

      Papagiannis, M. D., Are We Alone or Could They be in the Asteroid Belt?,
      Quarterly Journal of the Royal Astronomical Society, Vol. 19, pp. 277-281, 1978

      Abstract - The observations that life has a natural tendency to expand into all available space, that advanced technological civilizations should be able to engage with relative ease in interstellar travelling, and that once this threshold is crossed the complete colonization of the entire Galaxy will be accomplished in a very short interval relative to the age of the Galaxy, lead us to the following dilemma: either the entire Galaxy is teeming with intelligent life and hence our solar system must have been colonized hundreds of millions of years ago, or there are no other inhabitants in our solar system and hence most probably neither any-where else in the Galaxy. Before accepting, however, the bleak verdict that we are all alone in the Galaxy, we must search carefully throughout the solar system for any signs of other technological civilizations. The most logical place to look for them seems to be the asteroid belt because of the many advantages it offers to a galactic society living in space colonies.


    24. The Likelihood of Finding Extraterrestrial Laser Signals

      Ross, M., The Likelihood of Finding Extraterrestrial Laser Signals,
      McDonnell Douglas Astronautics Company, St. Louis, Missouri, USA.
      Journal of the British Interplanetary Society, Vol. 32, pp. 203-208, 1979

      Abstract - Communications at optical frequencies from extraterrestrial sources many light years away are shown to be quite feasible and can be received using present receiver technology. It is explained that the exact optical frequency need not be known and that short pulses in the nanosecond regime at high energy per pulse at very low duty cycle are most likely to be sent. Large optical collectors (10 to 20 metres diameter) of non-image quality can be built at low cost to collect the signal, it is explained why present optical telescopes and instrumentation would not normally detect such signals due to the planet's starlight and how this can be overcome by optical communication modulation formats. These formats enable a number of bits of information per received pulse. With many bits/pulse transmitted, each pulse may represent a line-word allowing for a small number of pulses to transmit a crude picture. it is further explained how high resolution pictures may be obtained. A suggestion is made relating to possible optical frequencies but it is made clear that it is not essential to detection of extraterrestrial laser signals. It is suggested that laser signals should be given consideration in addition to radio frequency signals for extraterrestrial communications.


    25. Design of an Optical Receiver for Space Signals

      Ross, M., Design of an Optical Receiver for Space Signals,
      Journal of the British Interplanetary Society, Vol. 33, pp. 89-94, 1980

      Introductory paragraphs - IN A RECENT PAPER, [1] it was explained how present technology is sufficient to detect likely laser signals from extraterrestrial sources. It was further explained that the likely nature of modulation of those signals and the laser output energy requirements were the same order as those of which we are presently capable. It was also discussed why the exact wavelength of the source need not be known and the reasons why laser transmission might be used. In this paper, we review briefly the above and provide a more detailed discussion of the optical receiver to detect extraterrestrial signals.

      The major obstacles to finding a laser signal from outer space have been (1) no knowledge of the optical frequency and (2) masking of the signal by the signal star's light. Both of these obstacles can be overcome by present technology and understanding of laser communications.
      1. M. Ross, JBIS, 32, 203-208 (1979)


    26. Legal Frameworks for Two Contact Scenarios

      Schenkel, P., Legal Frameworks for Two Contact Scenarios,
      Journal of the British Interplanetary Society, Vol. 50, pp. 258-262, 1997

      Abstract - Recent knowledge in a number of scientific fields has fostered confidence in the scientific community that, in spite of failure to detect extraterrestrial intelligent signals over the past 35 years, intelligent life must be widespread in our Galaxy and that there should be many alien civilisations more advanced than ours. A code of contact for the case that an extraterrestrial signal or message is received seems to be mandatory for mankind and a revised text of the already existing "Draft Declaration of Principles Concerning Activities Following the Detection of Extraterrestrial Intelligence" prepared by' the SETI Committee of the IAA, is suggested here. A Declaration of Principles is also proposed for the case that an extraterrestrial spacecraft detects our civilisation and lands or wishes to land on Earth.


    27. The Recognition of Extraterrestrial Artificial Signals

      Seeger, C. L. (NASA Ames Research Center) The Recognition of Extraterrestrial Artificial Signals,
      Asilomar Conference on Circuits, Systems, and Computers, 13th, Pacific Grove, Calif., November 5-7, 1979,
      Conference Record. (A81-26601 10-63), Piscataway, N.J., Institute of Electrical and Electronics Engineers, Inc., pp. 18-22, 1980

      Abstract - Considerations in the design of receivers for the detection and recognition of artificial microwave signals of extraterrestrial origin are discussed. Following a review of the objectives of SETI and the probable reception and detection characteristics of extraterrestrial signals, means for the improvement of the sensitivity, signal-to-noise ratios and on-line data processing capabilities of SETI receivers are indicated. The characteristics of the signals likely to be present at the output of an ultra-low-noise microwave receiver are then examined, including the system background noise, terrestrial radiations, astrophysical radiations, accidental artificial radiations of terrestrial origin, and intentional radiations produced by humans and by extraterrestrial intelligence. The classes of extraterrestrial signals likely to be detected, beacons and leakage signals, are considered, and options in the specification of gating and thresholding for a high-spectral resolution, high-time-resolution signal discriminator are indicated. Possible tests for the nonhuman origin of a received signal are also pointed out.


    28. Extraterrestrial Intelligent Life

      Sturrock, Peter, A., Extraterrestrial Intelligent Life,
      Quarterly Journal of the Royal Astronomical Society, Vol. 19, pp. 521-523, 1978

      Introductory paragraph - It appears that the search for extraterrestrial intelligence (ETI) is now a legitimate activity for astronomers and other scientists. This topic was recently reviewed on behalf of NASA by a panel of distinguished scientists led by professor Philip Morrison. Their primary conclusion is that, 'It is both timely and feasible to begin a serious search for intelligent extraterrestrial radio signals and also outline possible techniques for searching for planets associated with nearby stars (1).
      1. Morrison, P., Billingham, J. & Wolfe, J. (eds), 1977. The Search for Extraterrestrial Intelligence, SETI, NASA SP-419, National Aeronautics and Space Administration, Washington, DC.


    29. An Analysis of the Condon Report on the Colorado UFO Project

      Sturrock, Peter, A., An Analysis of the Condon Report on the Colorado UFO Project,
      Center for Space Science and Astrophysics, ERL 306, Stanford University, Stanford, CA 94305-4025,
      Journal of Scientific Exploration, Vol 1, No. 1, pp. 75-100, 1987

      The "Condon Report," presenting the findings of the Colorado Project on a scientific study of unidentified flying objects, has been and remains the most influential public document concerning the scientific status of this problem. Hence, all current scientific work on the UFO problem must make reference to the Condon Report. For this reason, it remains important to understand the contents of this report, the work on which the report is based, and the relationship of the "Summary of the Study" and "Conclusions and Recommendations" to the body of the report. The present analysis of this report contains an overview, an analysis of evidence by categories, and a discussion of scientific methodology. The overview shows that most case studies were conducted by junior staff; the senior staff took little part, and the director took no part, in these investigations. The analysis of evidence by categories shows that there are substantial and significant differences between the findings of the project staff and those that the director attributes to the project. Although both the director and the staff are cautious in stating questions, the staff tend to emphasize challenging cases and unanswered questions, whereas the director emphasizes the difficulty of further study and the probability that there is no scientific knowledge to be gained.

      Concerning methodology, it appears that the project was unable to identify current challenging cases that warranted truly exhaustive investigations. Nor did the project develop a uniform and systematic procedure for cataloging the large number of older cases with which they were provided. In drawing conclusions from the study of such a problem, the nature and scope of which are fraught with so much uncertainty, it would have been prudent to avoid theory-dependent arguments.


    30. Report on a Survey of the Membership of the American Astronomical Society Concerning the UFO Problem

      Sturrock, Peter, A., Report on a Survey of the Membership of the American Astronomical Society Concerning the UFO Problem,
      Journal of Scientific Exploration, Vol. 8, No. 1;2;3, 1994, pp. 1-45;153-195;309-346.

      Abstract - Refereed journals, to which scientists turn for their reliable information, carry virtually no information on the UFO problem. Does this imply that scientists have no views and no thoughts on the subject, or that all scientists consider it insignificant? Does it imply that scientists have no reports to submit comparable with UFO reports published in newspapers and popular books? The purpose of this survey was to answer these questions. Note: Sections 1-3 and the Appendices were published in Vol. 8, No. 1 of the Journal of Scientific Exploration. Section 4.1-4.3 appeared in Vol. 8, No. 2, and Section 4.4-4.9 was published in Vol. 8 No. 3.


    31. Uncertainty Estimates in the Number of Extraterrestrial Civilizations

      Sturrock, Peter A., Uncertainty Estimates in the Number of Extraterrestrial Civilizations,
      National Aeronautics and Space Administration, Grant NGR 05-020-668, SUIPR Report No. 808, March 1980; also contained in Strategies for the search for life in the universe; Proceedings of the Meeting, Montreal, Canada, August 15, 16, 1979. (A81-25626 10-88) Dordrecht, D. Reidel Publishing Co., pp. 59-72, 1980

      Abstract - Estimation of the number N of communicative civilizations by means of Drake's formula involves the combination of several quantities, each of which is to some extent uncertain. The uncertainty in any quantity may be represented by a probability distribution function, even if that quantity is itself a probability. The uncertainty of current estimates of N is derived principally from uncertainty in estimates of the lifetime of advanced civilizations. It is argued that this is due primarily to uncertainty concerning the existence of a "Galactic Federation" which is in turn contingent upon uncertainty about whether the limitations of present-day physics are absolute or (in the event that there exists a yet-undiscovered "hyperphysics") transient. It is further argued that it is advantageous to consider explicitly these underlying assumptions in order to compare the probable numbers of civilizations operating radio beacons, permitting radio leakage, dispatching probes for radio surveillance or dispatching vehicles for manned surveillance.

      The Master said Yu, shall I tell you what knowledge is? When you know a thing, to know that you know it, and when you do not know a thing, to recognize that you do not know it. This is knowledge.
      Analects of Confucius (Waley's translation).


    32. Stanford workshop on extraterrestrial civilization - Opening a new scientific dialog

      Sturrock, Peter A., Carlson, J. B., Stanford workshop on extraterrestrial civilization - Opening a New Scientific Dialog,
      Origins of Life, Vol. 6, pp. 459-470, July 1975

      Abstract - The existence of extraterrestrial civilization (ETC), interstellar communication, human contact with ETC, unidentified flying object (UFO) evidence, the evaluation of UFO phenomena, and the assessment of our ignorance about the universe are discussed. The organization of the Stanford workshop (August 29-30, 1974) convened to study these topics is also described. There were two groups of scientists: those considering physical, astronomical, and biological theoretical knowledge relative to ETC and searching for extraterrestrial radio signals; and those pursuing the UFO problem by analyzing eyewitness reports and photographs.

      Discussion at the Workshop centered on the following topics: the existence of ETC; interstellar travel; interstellar communication; human contact with ETC; UFO evidence; evaluation of the UFO phenomena; and assessment of our ignorance. It was generally agreed that radio search for ETC is a promising endeavor. Although it was agreed that study of the UFO problem is a justifiable pursuit, members of Group A chose to remain skeptical in the absence of unimpeachable evidence concerning the nature of the phenomena.

      Workshop Participants:

      W.M. Adams, Stanford University;
      C.W. Barnes, Stanford University;
      R.N. Bracewell, Stanford University;
      J.B. Carlson, University of Maryland;
      R.A. Dana, Stanford University;
      D.W. Davies, Jet Propulsion Laboratory;
      C.M. Haaland, Oak Ridge National Laboratory;
      J.A. Harder, University of California;
      R.C. Henry, Johns Hopkins University;
      J.A. Hynek, Center for UFO Studies;
      J.W. Knight, Stanford University;
      B.M. Oliver, Hewlett Packard;
      P.E. Palmer, University of Chicago;
      V. Petrosian, Stanford University;
      C.L. Seeger, San Francisco, California;
      R. Shaver, University of Groningen;
      P.A. Sturrock, Stanford University;
      G.W. Swenson, University of Illinois;
      P. Switzer, Stanford University;
      W.H. Tucker, Bonsall California;
      J.F. Vallee, Center for UFO Studies;
      F. Winterberg, University of Nevada;
      J. Wolfe, NASA/Ames Research Center;
      R.M. Wood, McDonnell-Douglas Corporation.


    33. Science and the Weighing of Evidence

      Sturrock, Peter A., Science and the Weighing of Evidence,
      Air Force Office of Scientific Research, Contract F44620-69-C-0008, National Aeronautics and Space Administration, Grant NGL 05-020-272, Office of Naval Research, Contract N00014-67-A-0112-005, SUIPR Report No. 413, 21 pages, March 1971

      Abstract - Progress in science depends on the appraisal of hypotheses by reference to observational data. This procedure is formalized in such a way that judgments made by the theorists ands judgments made by the observers may be combined to yield probabilities for the considered hypotheses.


    34. Extraterrestrial Intelligent Beings do not Exist

      Tipler, F. J., Extraterrestrial Intelligent Beings do not Exist,
      Quarterly Journal of the Royal Astronomical Society, Vol. 21, pp. 267-281, 1980

      Summary - It is argued that if extraterrestrial intelligent beings exist, then their spaceships must already be present in our solar system.


    35. Physics from UFO Data

      Teodorani M., Physics from UFO Data,
      European Journal of UFO and Abduction Studies (EJUFOAS), Vol. 1 (1), pp. 2-26, 2000

      Abstract - A research project regarding the instrumental investigation on atmospheric plasma-like luminous phenomena is proposed. Considered targets are treated on a par with astronomical objects having no fixed coordinates. Specifically oriented monitoring techniques and strategies involving small telescopes which are connected to CCD detectors, spectrographs and photon-counting photometers are presented. Expected exposure-times for acquiring an optimum signal-to-noise ratio of the target by using all the proposed instruments is also evaluated. Finally, physical parameters which are expected to be inferred from data analysis are presented and discussed in detail.


    36. Physical Data Acquisition and Analysis of Possible Flying Extraterrestrial Probes by using Opto-Electronic Devices

      Teodorani M., Physical Data Acquisition and Analysis of Possible Flying Extraterrestrial Probes by using Opto-Electronic Devices,
      Extraterrestrial Physics Review (EPR), Vol. 1, No. 3, pp. 32-37, 2000

      Abstract - A technical research project regarding the search for evidence of the extraterrestrial origin of UFO phenomena is proposed. After showing the main results from the analysis of an earlier Norwegian instrumental project, specific monitoring techniques and strategies based on magnetometers, radio spectrum analyzers and radar-assisted sensors for the detection and analysis of UFO optical and infrared light are presented together with calculations of exposure times for optical observations. Physical parameters which are expected to be determinable from subsequent data analysis are described in detail. Finally, crucial tests in order to prove or confute a non-natural origin of the UFO phenomenon are proposed and discussed.


    37. Experimental Methods for Studying the Hessdalen-Phenomenon in the light of the Proposed Theories: a Comparative Overview

      Teodorani M. and Strand E. P. Experimental Methods for Studying the Hessdalen-Phenomenon in the light of the Proposed Theories: a Comparative Overview
      Rapport 1998:5, Høgskolen i Østfold (Norway), pp. 1-93, 1998

      Abstract - Unexplained plasma-like atmospheric "light balls" are observed at very low altitudes during alternate phases of maximum and minimum in the Hessdalen area, located in central Norway. Several theories are presented in order to explain the observed phenomenon; among these: piezo-electricity from rocks, atmospheric ionization triggered by solar activity, cosmic rays and extraterrestrial visitation. The presented study is aimed at proposing the use of a dedicated instrumental set-up, research experimental procedures and methods in order to prove or disprove every single theory: in this context several kinds of observational techniques, measurement strategies and physical tests of tactical relevance are discussed in detail. An introduction on any considered theory is presented together with a detailed discussion regarding the subsequent experimental phase. For each specific theory brief descriptions of the observable parameters and of the essential instrumental choices and a detailed discussion of measurement procedures coupled with suitable flow-charts, are presented.


    38. Small Smart Interstellar Probes

      Tough, Allen, Small Smart Interstellar Probes,
      University of Toronto, 16 Balaby Crescent, North York, ON, Canada M3C 2B7.
      E-mail: AllenTough@aol.com
      Journal of the British Interplanetary Society, Vol. 51, pp. 167-174, 1998

      Abstract - Humanity is making rapid progress in computers, robotics, nanotechnology and space exploration. Consequently, within 200 years, we will be likely to launch small interstellar probes containing highly advanced computers. Perhaps other civilizations, more advanced than ours, launched intelligent machines long ago to explore parts of our galaxy. One of their tiny probes may have already reached our planet in order to observe or monitor us. Our current scientific search for extraterrestrial intelligence should be expanded by adding a sophisticated search for such a probe. Two SETI "declarations of principles" have been developed to cover the search for radio and laser signals originating many light-years away. Some SETI scientists have assumed that these two declarations also apply to the scenario of discovering a nearby probe but, in fact, the fit is not very good. A separate set of "Procedures Following Detection of An Interstellar Probe" has been drafted.


    39. What Role will Extraterrestrials play in Humanity's Future

      Tough, Allen, What Role will Extraterrestrials play in Humanity's Future,
      OISE University of Toronto, 252 Bloor Street West, Toronto, Ontario, Canada M5S 1V6.
      Journal of the British Interplanetary Society, Vol. 39, pp. 491-498, 1986

      Abstract - Because their capacities are probably highly advanced, some extraterrestrial species may be using unobtrusive methods of observing humankind and other fledgling civilisations in the Galaxy. The amount of help they want to give to such civilisations is probably quite significant. Their help could be of three types: instant intervention to avoid a nuclear holocaust or other imminent catastrophe; long-term help in reducing grave dangers; and help in improving nondangerous spheres of life. Sooner of later, unless we extinguish ourselves first, advanced extraterrestrials will have an enormous impact on humankind. Even during the next 30 years, the probability of contact or interaction may be one in four. Given these conclusions, what should we do next? Thirteen possible strategies are outlined. The likelihood and benefits of success are estimated for each strategy; then its overall priority is rated. At present, seven of the eight highest priority strategies remain neglected and unfunded.


    40. Observational Search for Polarized Emission from Space Vehicles/Communication Relays Near the Galactic Centre

      Vallee, J. P., and M. Simard-Normandin, Observational Search for Polarized Emission from Space Vehicles/Communication Relays Near the Galactic Centre,
      Astrono. Astrophys., Vol. 243, pp. 274-276, 1985

      Abstract -


    41. New Generation of Spectrometers for Measurement of Spectral Reflective Characteristics

      Mishev, D. N. et al., New Generation of Spectrometers for Measurement of Spectral Reflective Characteristics,
      Central Laboratory for Space Research at the Bulgarian Academy of Sciences
      Acta Astronautica, Vol. 12, no.11, pp. 973-975, 1985

      Abstract - A review is made on the design philosophy of groundbased multichannel spectrometers for measurements of solar irradiation reflected from various natural formations within the visible and near infrared range of the electromagnetic spectrum. Important specifics of the new generation ground-based spectrometers are the improved functional possibilities for the scientific experiments, management and for the specialized data processing. The instruments enable the performance both of automated mode of operation and within the payload of complex measurement equipment. the incorporation of proper computer techniques accounts for the increased intelligence and adaptivity which provides for the precise resolution necessary for the scientific methodology and applicable tasks.


    42. Can the UFO Extraterrestrial Hypothesis and Vallee Hypotheses Be Reconciled?

      Bramley, William, Can the UFO Extraterrestrial Hypothesis and Vallee Hypotheses Be Reconciled?,
      Journal of Scientific Exploration, Vol. 6, No. 1, pp. 3-11, 1992

      Abstract - The phenomenon of Unidentified Flying Objects (UFOs) presently affords analysts only pieces of a hereto unknown whole reality. Because the whole is not seen or understood, the visible pieces often appear to be irreconcilable with one another and lead to hypotheses which are in conflict. The Extraterrestrial Hypothesis (ETH) and the hypothesis of Dr. Jacques Vallee (the "Vallee Hypothesis")(VH) represent two such divergent hypotheses. Through analogy to processes and realities that we do not understand, it is possible to begin reconciling the evidence of those who support the ETH and those who support the VH. In doing so, we find that the evidence presented in support of the VH does not necessarily compel exclusion of the ETH; but it does demand an acceptance that the UFO phenomenon presents analysts with something of far broader scope in its scientific, social, and historical dimensions than many supporters of the ETH have acknowledged.


    43. UFOs and NASA

      Henry, Richard C., UFOs and NASA,
      Journal of Scientific Exploration, Vol 2, No. 2, pp. 93-142, 1988

      Abstract - In 1977 President Carter's Science Advisor recommended that a small panel of inquiry be formed by NASA to see if there had been any new significant findings on UFOs since the US Air Force- sponsored investigation of UFOs ("Condon Report") a decade later. Five months later, NASA responded to that recommendation by proposing "to take no steps to establish a research activity in this area or to convene a symposium on the subject." This article offers a partial inside look at how that decision was made at NASA.


    44. The absence of extraterrestrials on earth and the prospects for CETI

      Schwartzman, D. W., The absence of extraterrestrials on earth and the prospects for CETI,
      Icarus, Vol. 32, pp. 473-475, Dec. 1977

      Abstract - The author assumes that there exists a vast network of intelligent civilizations (the Galactic Club) in productive mutual contact and that UFOs are of extraterrestrial intelligent (ETI) origin and flown by members of the Galactic Club. He then suggests that the reason for the lack of official contact between UFOs of ETI origin and us is that they are merely surveying us because we are on the verge of becoming a member of the Galactic Club. He makes two proposals for a CETI strategy: (1) carry out radio search for Type II and Type III civilizations among nearer galaxies and search for Bracewell probes, and (2) carry out serious study of the UFO phenomenon to produce 'harder' data (e.g., spectra from glowing UFOs), including a systematic search using radar networks, infrared sensors from space, etc.


    45. Unusual Aerial Phenomena

      Hynek, J. Allen, Unusual Aerial Phenomena,
      Ohio State University, Columbus, Ohio
      Journal of the Optical Society of America, Vol. 43, no. 4, pp. 311-314, April 1953.

      Abstract - Over a period of years, diverse aerial sightings of an unusual character have been reported. On the assumption that the majority of these reports, often made in concert, come from reputable persons, and in the absence of any universal hypotheses for the phenomena which stimulated the reports, it becomes a matter of scientific obligation and responsibility to examine the reported phenomena seriously despite their seemingly fanciful character. Accordingly, several hundred serious reports of "unidentified aerial objects" have been studied in detail in an attempt to get a pattern classification. It appears that those reported phenomena which do not admit of a ready and obvious explanation exhibit fairly well-defined patterns and that these are worthy of further study. One pattern in particular, that of a hovering nocturnal light, does not appear to be readily explainable on an astronomical basis or by mirages balloons or by conventional aircraft.


    46. Five Arguments Against the Extraterrestrial Origin of Unidentified Flying Objects

      Vallee, Jacques, Five Arguments Against the Extraterrestrial Origin of Unidentified Flying Objects,
      Journal of Scientific Exploration, Vol. 4, No. 1, pp. 105-117, 1990.

      Abstract - Scientific opinion has generally followed public opinion in the belief that unidentified flying objects either do not exist (the "natural phenomena hypothesis") or, if they do, must represent evidence of a visitation by some advanced race of space travelers (the extraterrestrial hypothesis or "ETH"). It is the view of the author that research on UFOs need not be restricted to these two alternatives. On the contrary, the accumulated data base exhibits several patterns tending to indicate that UFOs are real, represent a previously unrecognized phenomenon, and that the facts do not support the common concept of "space visitors." Five specific arguments articulated here contradict the ETH: (1) unexplained close encounters are far more numerous than required for any physical survey of the earth; (2) the humanoid body structure of the alleged "aliens" is not likely to have originated on another planet and is not biologically adapted to space travel; (3) the reported behavior in thousands of abduction reports contradicts the hypothesis of genetic or scientific experimentation on humans by an advanced race; (4) the extension of the phenomenon throughout recorded human history demonstrates that UFOs are not a contemporary phenomenon; and (5) the apparent ability of UFOs to manipulate space and time suggests radically different and richer alternatives, three of which are proposed in outline form as a conclusion to this paper.


    47. Towards a Second-Degree Extraterrestrial Theory of UFOs: A Response to Dr. Wood and Prof. Bozhich

      Vallee, Jacques, Towards a Second-Degree Extraterrestrial Theory of UFOs: A Response to Dr. Wood and Prof. Bozhich,
      Journal of Scientific Exploration, Vol. 5, No. 1, pp. 113-120, 1991.

      Abstract - Counter-arguments to the views expressed by this author in a previous article questioning the extraterrestrial nature of unidentified flying objects have been presented by Dr. Robert Wood, an American aerospace expert, and by Prof. Serge Bozhich, a Soviet mathematician. These counter-arguments propose alternative explanations for five major inconsistencies we had noted in the ETH theory. In this response, it is shown that such explanations represent a significant alteration of these basic tenants of the ETH, and that they do introduce useful new insights for future research on UFOs. However, some of the contradictions remain, especially when the matter of "abductions" is brought under close scrutiny.


    48. The Extraterrestrial Hypothesis is Not That Bad

      Wood, R., The Extraterrestrial Hypothesis is Not That Bad,
      Journal of Scientific Exploration, Vol. 5, No. 1, pp. 103-112, 1991.

      Abstract - The Extraterrestrial Hypothesis (ETH) explanation of Unidentified Flying Objects (UFOs) has not been attractive to many scientists because of the apparent requirement to exceed the speed of light in making such trips. It is postulated that if the basis of gravity control systems were discovered, and that if the speed of light can either be raised or exceeded using such devices, then the pattern of UFO reports is consistent with the ETH. Recently, five arguments against the ETH have been advanced by Vallee in this Journal (1990). Each argument can be countered as follows: (1) thousands of visiting civilizations account for the wide variety and large number of reports; (2) the frequently reported similarity to Homo Sapiens shape may be due to historical interactions, or due to biological optimization; (3) the primitive treatment during reported abductions may be the exception from some less ethical civilizations; (4) the historical extension of the UFO phenomenon is to be expected; and (5) the near-magical reports of time, space, and light manipulation is due to high technology. Travel distance and travel time for constant acceleration and deceleration trips are displayed graphically, based on the feasibility of hyperoptic gravity control transportation systems. Convenient astronomical distance reference points are noted.


    49. The Arecibo Message of November, 1974

      National Astronomy and Ionosphere Center, The Staff at the, The Arecibo Message of November, 1974
      Ithaca, New York and Arecibo, Puerto Rico
      Academic Press, Inc., 1975, Great Britain

      Abstract - On November 16, 1974, the Arecibo Observatory transmitted at 2380 MHz at an effective bandwidth of 10 Hz a message directed at the globular cluster M13. The message consists of a 1679 bit picture portraying a counting scheme, five biologically significant atoms (H, C, O, N, and P), the generic structure of the four purines and pyrimidine bases of DNA; a schematic of the DNA double helix with an order of magnitude estimate of the number of base pairs; a representation of a human being and his or her dimensions; a depiction of the solar system with an indication that human beings inhabit the third planet and an estimate of the human population of the Earth; and finally, a schematic representation of the Arecibo Observatory and a description of its dimensions.


    50. Searching for Interstellar Communications

      Cocconi, Giuseppe, Morrison, Philip, Searching for Interstellar Communications,
      Cornell University, Ithaca, New York
      Nature, Vol. 184, No. 4690, pp. 844-846, September 19, 1959.

      Abstract - Interstellar communications across the galactic plasma without dispersion in direction and flight-time is practical, so far as we know, only with electromagnetic waves. Since the object of those who operate the source is to find a newly evolved society, we may presume that the channel used will be one that places a minimum burden of frequency and angular discrimination on the detector. Moreover, the channel must not be highly attenuated in space of in the Earth's atmosphere. Radio frequencies below ~1 MHz/s., and all frequencies higher than molecular absorption lines near 30,000 MHz up to cosmic ray gamma energies, are suspect of absorption in planetary atmospheres. The band-widths which seem physically possible in the near-visible or gamma-ray domains demand either very great power at the source or very complicated techniques. The wide radio-band from, say, 1 MHz to 104 Mhz/s., remains as the rational choice.


    51. Is Mankind Unique in the Galaxy?

      Martin, Anthony, B., Bond, Allen Is Mankind Unique in the Galaxy?
      Culham Laboratory, Abingdon, Oxon, England
      American Institute of Aeronautics and Astronautics, International Astronomical Congress, 35th, Lausanne, Switzerland,
      IAF Paper 84-239, pp. 221-222, October 1984.

      Introductory paragraphs - If intelligent life is a common occurrence in the Galaxy, then many civilizations should have arisen which by now are far in excess of mankind in both their age and their capabilities. It is to be expected on technical grounds that some of these should have crossed the threshold of their home planetary system and ventured out into interstellar space. In a time that is short when measured against astronomical timescales such civilizations could have colonized the planets orbiting every suitable star in the Galaxy.

      As the Solar System is relatively young in the Galaxy, there should never have been a time in our history when mankind was not aware of the presence of such civilizations. And yet, we apparently see no signs of intelligent life in the Galaxy other than ourselves.

      This paradox, now well known, was first expressed by Enrico Fermi 40 years ago, and today is still as relevant to discussions on the possible existence of intelligent life in the Universe and the methods of searching for signs of such life as it was then.

      The authors have reviewed the many aspects of the Fermi Paradox for the last decade, and have recently entered the debating chamber. This present paper is an attempt to further contribute to that debate by exploring some of the arguments prompted by the Paradox in more detail than we have previously commented on. We emphasize that we are participating in a debate which has been underway for several years now, and which has well-developed arguments covered in depth in the literature. It is our hope that, by elaborating some of the key concepts which we find persuasive, we will cause the debate to refocus on the Paradox that Fermi identified so many years ago.


    52. An Instrument-Based Method to Searth for ExtraTerrestrial Robotic Probes

      Stride, Scot L., Instrument-Based Method to Searth for ExtraTerrestrial Robotic Probes
      Canoga Park, California, USA
      Journal of the British Interplanetary Society,
      JBIS Paper - Vol. 54, No. 1/2, pp. 2-13, 2001
      Email: www.setv.org@setv.org

      Abstract -
      Technological advancements have allowed us to build robotic space probes
      to remotely explore the solar system. Interstellar robotic missions are under
      serious consideration. Advanced extant extraterrestrial civilizations within
      the galaxy, if they exist, are very likely exploring with robotic probes as well,
      some of which may have reached our solar system and taken an interest in life on
      Earth. Recent technological advances make it possible to conduct a scientific
      search for evidence of extraterrestrial interstellar robotic probes. Modern
      solid-state sensing devices and scientific instruments, combined with
      high-speed computer hardware, can be used in an effort to detect the physical
      presence of a probe. The SETV (Search for ExtraTerrestrial Visitation)
      model is new and an offspring of SETA (artifacts) and SETI. SETV includes
      the construction of passive and active autonomous data acquisition platforms using
      "commercial off-the-shelf" hardware, to collect reliable and unambiguous data
      on anomalous observational phenomena that may be ETI probes. The SETV hypothesis
      and experimental methods will be described. The SETV hypothesis can be
      experimentally tested and attempts to statistically reject a null hypothesis
      which states that ETI probes do not exist. SETV Pre and Post-detection
      protocols are necessary and will be examined. SETV is a timely,
      results-oriented, method worthy of serious consideration in our continuing
      desire to answer the question "Are we alone?"

      Keywords: SETI, Interstellar robotic probes, SETV, SETA, COTS, Instruments,
      Sensors, Automated smart surveillance

      Table of Contents
      1. Introduction
      2. Autonomous ETI Probes and their missions
      Figure 1. Russian Luna 1 Space Probe (circa 1959)
      3. The SETV Experiment
      3.1 Placement of an Experimental Platform
      3.2 Description of an Experimental Platform
      Figure 2. ETP Scanning Polycamera System Block Diagram
      3.3 Related Observational Experiments, AOP and DATA Analysis
      Figure 3. Hypothetical Cladogram
      3.4 SETV Protocols
      4. Conclusion
      5. Acknowledgements

      Note by Walt Williams, SETV Search Model Founder:
      The SETV search model was codeveloped through the efforts of Walt Williams,
      Scot Stride, Dr. Allen Tough, Dr. Bruce Cornet, Dr. Herman Fischer,
      Dr. Sy Wong, Steve Chris, Richard Burke-Ward and Saundra Marsh; all while affiliated with the
      Organization for SETV Research, (OSR). Mr. Stride's base scheme was derived from book
      research developed by Walt Williams over ten year period prior to affiliation
      with members of the OSR. The book was originally titled -
      "Intstrument Strategies for Measurement and Detection of Suspected Near Earth Extraterrestrial
      Objects", and collectively renamed to "Brighter than White Sands",
      by Scot Stride and Walt Williams in 1997. Scot Stride published the outline of the
      of the SETV manuscript. The full doctrine is nearing completion and will likely be published
      later this year (2003). Stride's version of SETV is oriented via premise that
      Near Earth Objects could be present owing to the commensurable Human development
      and interest to send robotic exploratory probes into the cosmos, which is in itself
      a SETV strategy. Stride is taking the "safe-SETI" approach, by examining only robotic
      probes. However, SETV is not limited to speculation about possible robotic probes,
      as the search strategy is field data driven as well. For more information about the
      SETV search strategy, ongoing efforts by the Near Earth ET Studies community
      please visit: www.setv.org - the founding organization of the SETV search model.
      Incidentally, SETI, is very cleverly integrating the SETV search strategy into
      their historical billion-dollar non-functional search model. To be fair, SETV
      and other late-arrival scientific search strategies can exist today the result of
      hard-won very difficultly earned credibility via the dedicated and tireless efforts
      of past SETI scientists.

      Kind Regards,
      Walt Williams
      SETV


    53. On the Significance of the Apparent Absence of Extraterrestrials on Earth

      Stull, M.A., On the Significance of the Apparent Absence of Extraterrestrials on Earth
      NASA - Ames Research Center, Moffett Field, California, 94035, U.S.A.
      Journal of the British Interplanetary Society, Vol. 32, pp. 221-222, 1979.

      Abstract -Arguments that even a single extraterrestrial civilization would have long ago colonized the Galaxy are not compelling. Many factors, including intraspecific competition, could prevent complete colonization, except, perhaps, on time scales much greater than 1010 years. It follows that the fact that extraterrestrial civilizations do not appear to be represented on Earth is irrelevant to the formulation of plans to search for them.


    54. Stanford workshop on extraterrestrial civilization - Opening a new scientific dialog - Conference Report

      Sturrock, Peter A., Carlson, J.B., Stanford workshop on extraterrestrial civilization - Opening a new scientific dialog - Conference Report

      Carlson, J. B.
      Astronomy Program, University of Maryland, College Park, Md., 20742, U.S.A.

      Sturrock, Peter A.,
      Institute for Plasma Research and Applied Physics Department,
      Stanford University, Stanford, California, 94305, U.S.A.

      Origins of Life, Vol. 6, pp. 459-470, July 1975.
      D. Reidal Publishing Company, DorDrecht, Holland

      Abstract - A workshop, held at Stanford University on August 29 and 30, 1974, brought together two groups of scientists interested in ExtraTerrestrial Civilization (ETC). Group A is comprised of scientists studying the problem theoretically in terms of physical, astronomical and biological knowledge, and those considering searching for extraterrestrial radio signals which might provide evidence for ETC. Group B comprises scientists pursuing the UFO PROBLEM; their activities comprise analysis of soft evidence such as eye-witness reports, and of hard evidence such as photographs.

      Discussion at the Workshop centered on the following topics: the existence of ETC; interstellar travel; interstellar communication; human contact with ETC; UFO evidence; evaluation of the UFO phenomena; and assessment of our ignorance. It was generally agreed that radio search for ETC is a promising endeavor. Although it was agreed that study of the UFO problem is a justifiable pursuit, members of Group A chose to remain skeptical in the absence of unimpeachable evidence concerning the nature of the phenomena.

      Workshop Participants:

      W.M. Adams, Stanford University;
      C.W. Barnes, Stanford University;
      R.N. Bracewell, Stanford University;
      J.B. Carlson, University of Maryland;
      R.A. Dana, Stanford University;
      D.W. Davies, Jet Propulsion Laboratory;
      C.M. Haaland, Oak Ridge National Laboratory;
      J.A. Harder, University of California;
      R.C. Henry, Johns Hopkins University;
      J.A. Hynek, Center for UFO Studies;
      J.W. Knight, Stanford University;
      B.M. Oliver, Hewlett Packard;
      P.E. Palmer, University of Chicago;
      V. Petrosian, Stanford University;
      C.L. Seeger, San Francisco, California;
      R. Shaver, University of Groningen;
      P.A. Sturrock, Stanford University;
      G.W. Swenson, University of Illinois;
      P. Switzer, Stanford University;
      W.H. Tucker, Bonsall California;
      J.F. Vallee, Center for UFO Studies;
      F. Winterberg, University of Nevada;
      J. Wolfe, NASA/Ames Research Center;
      R.M. Wood, McDonnell-Douglas Corporation.


    55. Research Report: Physical Evidence Related to UFO Reports

      Sturrock, P. A., et al, Research Report: Physical Evidence Related to UFO Reports,
      Journal of Scientific Exploration, Vol. 12, No. 2, pp. 179-229, 1998.

      Abstract - The purpose of this four-day workshop was to review purported physical evidence associated with UFO reports, with a view to assessing whether the further acquisition and investigation of such evidence is likely to help solve the UFO problem, namely the determination of the cause or causes of these reports.
      Seven UFO investigators presented a variety of physical evidence that they claimed was associated with UFO reports: photographic evidence; luminosity estimates; radar evidence; interference with automobile functioning; interference with aircraft equipment; apparent gravitational or inertial effects; ground traces; injuries to vegetation; physiological effects on witnesses; and analysis of debris. There was in addition a presentation of investigations into recurrent phenomena that occur in the Hessdalen Valley in Norway.
      A review panel was composed of nine scientists of diverse expertise and interests. The panel offered comments and criticisms concerning the investigations that were presented, and also prepared a summary of their overall response, with the following key elements:

      • Concerning the case material presented by the investigators, the panel concluded that a few reported incidents may have involved rare but significant phenomena such as electrical activity, but there was no convincing evidence pointing to unknown physical processes or to the involvement of extraterrestrial intelligence.

      • The panel nevertheless concluded that it would be valuable to carefully evaluate UFO reports since, whenever there are unexplained observations, there is the possibility that scientists will learn something new by studying these observations.

      • However, to be credible, such evaluations must take place with a spirit of objectivity and a willingness to evaluate rival hypotheses.

      • The best prospect for achieving a meaningful evaluation of relevant hypotheses is likely to come from the examination of physical evidence.

      • The chances of a significant advance are considered to be greater now than at the time of the Colorado Project that led to the Condon Report thirty years ago, because of advances in scientific knowledge and technical capabilities, and in view of the example of a modest but effective UFO research project provided by the French space agency CNES.


      Scientific Review Panel Participants:

      V.R. Eshleman, (Co-Chair) Emeritus Professor of Electrical Engineering, Stanford University.
      T.E. Holzer, High Altitude Observatory, Boulder, Colo.
      J. R. Jokipii, Regents' Professor of Planetary Sciences and Astronomy, University of Arizona, Tucson.
      F. Louange, Managing Director of Fleximage, Paris, France.
      H. J. Melosh, Professor of Planetary Science, University of Arizona, Tucson.
      J. J. Papike, Professor of Earth and Planetary Sciences, University of New Mexico, Albuquerque.
      G. Reitz, German Aerospace Center, Institute for Aerospace Medicine, Cologne, Germany.
      C.R. Tolbert, Professor of Astronomy, University of Virginia, Charlottesville.
      B. Veyret, Bioelectromagnetics Laboratory, University of Bordeaux, France.


      Presenting Investigators:

      Richard Haines, Los Altos, Calif.
      Illobrand von Ludwiger, Germany.
      Mark Rodeghier, Center for UFO Studies, Chicago.
      John Schuessler, Houston.
      Erling Strand, Ostfold College, Skjeberg, Norway.
      Michael Swords, Professor of Natural Science, Western Michigan University, Kalamazoo.
      Jacques Vallee, San Francisco.
      Jean-Jacques Velasco, CNES, Toulouse, France.

      Full report text may be viewed on the Society for Scientific Exploration website, depress 'back' button to return to here

    56. Feasibility of Interstellar Travel: A Review

      Forward, Robert, L., Feasibility of Interstellar Travel: A Review,
      Hughes Research Laboratories, 3011 Malibu Canyon Rd. , Malibu California 90265, USA
      Journal of the British Interplanetary Society, Vol. 39, pp. 379-384, 1986.

      Abstract - Interstellar travel is difficult, but not impossible. This review paper discusses the relative feasibility of a number of different technologies that will allow travel to the stars. It gives examples of one-way and rendezvous unmanned interstellar probe vehicles that can return data on the number and nature of the planets around the target system within less than 50 years after launch. These initial exploration probe missions will be followed by manned or robotic exploration and colonisation missions. These can range from relatively feasible long slow missions using "world ships" propelled by existing nuclear pulse or nuclear electric technologies and carrying self-producing human crews, to high risk, high speed missions using beamed power, antimatter, or interstellar ramjet technology. For the nearer stellar system, speeds of 0.1 to 0.3 the speed of light will suffice to explore the 17 nearest stellar systems with 25 visible stars and hundreds of planets in trip times comparable to a human lifetime. Some emergent high energy density technologies that are under development for other purposes, such as laser and electron beam imploded fusion and solar powered lasers and masers, show promise of providing us with propulsion technologies that will make rapid interstellar travel feasible within the foreseeable future.


    57. A SETI Experiment

      McLaughlin, William, I., A SETI Experiment,
      Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA
      Journal of the British Interplanetary Society, Vol. 39, pp. 325-326, 1986.

      Abstract - In order to increase the probability of contact in the search for extraterrestrial intelligence (SETI) it has been proposed to search more intensively in certain regions of the electromagnetic spectrum ("the water hole"). The present paper describes a similar narrowing of the search in the time domain. Application of this strategy results in the SETI experiment of searching for signals from the Tau Ceti system late in 1986 and early in 1987 and the Epsilon Eridani system in mid 1988.


    58. A guide to UFO Research

      Swords, M.D., A guide to UFO Research,
      Journal of Scientific Exploration, Vol. 7, No. 1, pp. 65-87, 1993.

      Abstract - The very natural query of the interested intellectual: what should I read to understand the status of the UFO Phenomenon?, has no simple answer. This review article briefly examines the characteristics of the "UFO Problem" and relates those characteristics to the problem of ignorance in the academic community. An "inside look" at the appropriate library for the "working UFOlogist" is then explored.


    59. Phantasmagoria or Unusual Observations in the Atmosphere

      Urner Liddel, Phantasmagoria or Unusual Observations in the Atmosphere*,
      Bendix Aviation. Corporation, Detroit, Michigan
      Journal of the Optical Society of America, Vol. 43, no. 4, pp. 314-317, April 1953

      Abstract - For many eras in man's history, the sky has been occupied by various god, or constellations, or birds, mythical or real. A new concept has arisen in the last few years, largely a product of aviation and balloonry, and civil air defense spotters. In general the reports have more psychological than physical significance. However, certain optical phenomena are now gaining far wider interest than among research men in optics. Some "authentic reports" by "reliable, competent observers" are recounted and considered. While complete interpretation of all "reports" is impossible, due to lack of sufficient experimental data, NO evidence exists for any phenomena not explicable by standard physical concepts.


    60. The absence of extraterrestrials on earth and the prospects for CETI

      Schwartzman, D. W., The absence of extraterrestrials on earth and the prospects for CETI,
      Howard University, Washington, D.C.
      Icarus, vol. 32, Dec. 1977, p. 473-475., Publication Date: 12/1977
      Bibliographic Code: 1977Icar...32..473S
      Category: Space Sciences (General)
      Origin: STI, NASA/STI Keywords
      ExtraTerrestrial Communication, ExtraTerrestrial Life, Milky Way Galaxy, Radio Communication, Unidentified Flying Objects

      Abstract - The author assumes that there exists a vast network of intelligent civilizations (the Galactic Club) in productive mutual contact and that UFOs are of extraterrestrial intelligent (ETI) origin and flown by members of the Galactic Club. He then suggests that the reason for the lack of official contact between UFOs of ETI origin and us is that they are merely surveying us because we are on the verge of becoming a member of the Galactic Club. He makes two proposals for a CETI strategy: (1) carry out radio search for Type II and Type III civilizations among nearer galaxies and search for Bracewell probes, and (2) carry out serious study of the UFO phenomenon to produce 'harder' data (e.g., spectra from glowing UFOs), including a systematic search using radar networks, infrared sensors from space, etc.


    61. The Emerging Picture of the UFO Problem

      Hynek, J. Allen, The Emerging Picture of the UFO Problem
      Center for UFO Studies (Evanston, IL United States)
      Journal: AIAA Paper 75-41, Jan 01, 1975

      Abstract - This paper intends to present the elements of the UFO (Unidentified Flying Object) problem, today. Truly unidentified reports of events in the air, and close to the ground, exist, events worldwide in origin and appearing to fit a relatively small number of patterns. The data, amenable to study of an interdisciplinary nature, involving a number of scientific disciplines and probably necessitating new departures in methodology, have been imperfectly studied in the past and have been virtually ignored by science. An increasing interest in, and open-mindedness about the UFO phenomenon, whatever its cause, on the part of established scientists and the educated public exists, and there has been created a Center for UFO Studies, whose activities are guided by a scientific board of established scientists in their respective disciplines. The outstanding objective of the attack on the UFO problem is the formulation of a hypothesis -- or hypotheses -- that encompasses the established parameters of the UFO phenomenon -- no matter how far beyond the boundaries of present day science it may have to be.


    62. Unidentified Flying Objects: The Physical Evidence

      Phillips, Ted R., Jr., Unidentified Flying Objects: The Physical Evidence
      Center for UFO Studies (Evanston, IL United States)
      AIAA Paper 75-45, Jan 01, 1975

      Abstract - It has been stated that little, if any, real evidence exists to prove the case for the UFO (Unidentified Flying Objects). While it is true that there is no direct proof, there is tangible evidence available for study. This evidence is to be found in the physical trace cases, reports involving a UFO landing and the disturbance of soil or plants at the alleged landing site. In this paper I have eliminated a rather detailed statistical study of the trace cases as this information is to be published by the Center For UFO Studies in the near future. Evaluation of the patterns presented in this report should make it quite clear that the physical trace landing cases are quite numerous and on the increase. During the past twenty-five years the trace reports have not received a great deal of publicity. Many of these cases are not quite sensational enough for public consumption. I feel that the study presents significant statistical patterns. Examples of high quality cases are presented which have not reached publication in any of the prominent journals and certainly no scientific journals. I trust the information presented will at least stimulate interest in this one piece of the UFO puzzle.


    63. Basic Patterns in UFO Observations

      Poher, Claude, Centre National d'Etudes Spatiales, (CNES)
      Vallee, Jacques, Center for UFO Studies, (CUFOS), Basic Patterns in UFO Observations
      Centre National d'Etudes Spatiales (Toulouse, France)
      Journel: AIAA Paper 75-42, Jan 01, 1975

      Abstract - This paper presents the view that (1) a significant proportion of the thousands of UFO reports analyzed by the authors come from witnesses who have really observed an object in the sky or at ground level; (2) the objects these witnesses have seen have characteristics very different from all identifiable objects and phenomena; (3) the phenomenon is of high scientific interest; and (4) a systematic research approach can be defined. These conclusions are based on many years of research into the phenomenon, in the course of which the authors have had at their disposal the official Air Force files of the United States and of France, as well as files of several reliable private organizations. The paper presents the results of computer statistics obtained independently, and it describes some correlations between geomagnetic disturbances and UFO observations.
      Major Subject Terms:
      Unidentified Flying Objects, ExtraTerrestrial Intelligence, Project SETI

      Minor Subject Terms:
      Geomagnetism, Magnetic Disturbances, Governments, Organizations, Documents
      United States, France

      Notes:
      Aerospace Sciences Pasadena, CA 20-22 Jan. 1975


    64. Extrinsic Factors in UFO-Reporting

      Saunders, D. R., Extrinsic Factors in UFO-Reporting Chicago Univ. (Chicago, IL., United States),
      Journal: AIAA Paper 75-43, Jan 01, 1975

      Abstract - Using the method of stepwise multiple correlation analysis, five factors are identified having empirically-demonstrable effects on the production of UFO-reports; other factors have been simultaneously set aside as irrelevant. In order to maximize the number of reports, it is helpful (a) to assemble a large number of potential witnesses, (b) to educate them at least through high school, (c) to station them where they can see, (d) to give them a place to report, and (e) to provide one or more examples of such reports. Data on these factors alone suffice to provide a multiple correlation of 0.82 with actual numbers of UFO-reports produced in US counties, and they come at least very close to accounting for the statistical reliability of this criterion. Several hypotheses predicated on alternative models of the UFO-reporting process are affirmatively rejected by the data reported here.

      Major Subject Terms:
      UNIDENTIFIED FLYING OBJECTS EXTRATERRESTRIAL INTELLIGENCE PROJECT SETI
      Minor Subject Terms:
      CORRELATION STATISTICAL TESTS

      Notes:
      13th Aerospace Sciences Pasadena, CA 20-22 Jan. 1975


    65. A mind/brain/matter model consistent with quantum physics and UFO phenomena

      Bearden, T. E., A mind/brain/matter model consistent with quantum physics and UFO phenomena
      Computer Sciences Corporation, Jan 01, 1979, ppg 41,
      Computer Sciences Corp. (Huntsville, AL, United States)

      Abstract - The author introduces a speculative model of mind and matter and their interaction that is consistent with the experimental basis of physics, and which offers mechanisms for paranormal phenomena of all types, including UFO phenomena. Certain conclusions are reached by a new fourth law of logic, which is briefly described and summarized. A new photon interaction model of quantized observable change is also presented. A solution to the problem of the nature of mind is generated, using the author's fourth law of logic, and a seven-dimensional hyperspatial physical model of a living biosystem is developed. Using this basic model, an infinite-dimensional cotemporal hyperspatial model of the physical universe complete with all its life forms is constructed. Levels of unconsciousness-including the collective human species unconscious--emerge naturally as types of crosstalk between hyperframes. By the author's formula, the psychokinetic power of a mind level increases exponentially as the number of biosystem stages involved. At the level of the collective human species unconscious, the psychokinesis is sufficient to materialize symbolic tulpoids (thought forms), given a sufficient stress stimulus in large groups. Using the cold war as the major stress stimulus on mankind since World War II, the author shows that most major UFO waves in the literature precisely fit the model.

      Major Subject Terms:
      Human Behavior, Logic, Perception, Psychophysics, Psychotronics, Psionics,

      Minor Subject Terms:
      Consciousness, Models, Quantum Theory, Stress (Psychology)
      Unidentified Flying Objects


    66. How far could we make ourselves understood by the Andromedans?
      - An evolutionary cybernetic problem in hierarchical dynamics


      Santoli, Salvatore, How far could we make ourselves understood by the Andromedans?
      - An evolutionary cybernetic problem in hierarchical dynamics

      Journal: British Interplanetary Society, Vol 47, Issue 1, ppg:11-16, Jan 01, 1994

      Abstract -The mechanistic interpretation of the communication process between cognitive hierarchical systems as an iterated pair of convolutions between the incoming discrete time series signals and the chaotic dynamics (CD) at the nm-scale of the perception (energy) wetware level, with the consequent feeding of the resulting collective properties to the CD software (symbolic) level, shows that the category of quality, largely present in Galilean quantitative-minded science, is to be increasingly made into quantity for finding optimum common codes for communication between different intelligent beings. The problem is similar to that solved by biological evolution, of communication between the conscious logic brain and the underlying unfelt ultimate extralogical processes, as well as to the problem of the mind-body or the structure-function dichotomies. Perspective cybernated nanotechnological and/or nanobiological interfaces, and time evolution of the 'contact language' (the iterated dialogic process) as a self-organising system might improve human-alien understanding.

      Major Subject Terms:
      Communication, Cybernetics, ExtraTerrestrial, Intelligence, Intelligibility
      Project SETI, Semantics

      Minor Subject Terms:
      Hierarchies, Information Theory, Words (Language)

      Notes:
      British Interplanetary Society, Journal vol. 47, no. 1 p. 11-16 January 1994


    67. On the Regularities of Development of ExtraTerrestrial Civilizations and the Search Strategy

      Troitskii, V. S., On the Regularities of Development of ExtraTerrestrial Civilizations and the Search Strategy
      Nauchno-Issledovatel'skii Radiofizicheskii Institut

      IAF Paper 83-271, Pages: 4, Oct 01, 1983

      Abstract - Possible forms of energy conversion, technologies, and interstellar projects on which advanced extraterrestrial civilizations may be occupied are discussed. It is suggested that if life began evolving in the Universe 8-10 billion years ago, then some alien civilizations may be presently reshaping and building galaxies by now, although no astronomical evidence for such feats is presently available. Limiting factors for civilizations are light speed and dependence for thermal conditions on the distance to the home star. Energy limitations will encourage continual reconfiguring of a civilization's energy usage until the prime energy source is the home star, around which city-worlds could be built. The techniques would eventually lead to star travel because of the ability to reform and use energy. However, if life came into existence everywhere in the Universe simultaneously at the phase change after the Big Bang, then even millions of years could transpire before initial attempts to colonize the galaxy are enacted. The limitations on terrestrial technology and energy supplies would then be the equivalent of those in other civilizations, indicating that millimeter wave transmissions would have a chance at establishing contact.

      Major Subject Terms:
      ExtraTerrestrial Intelligence

      Minor Subject Terms:
      Energy Conversion, Evolution (Development), Technologies

      Notes:
      International Astronautical Federation,
      International Astronautical Congress, 34th,
      Budapest, Hungary, Oct. 10-15, 1983. 4 p.


    68. Engineering Planetary LASERs for Interstellar Communication

      Sherwood, Brent, Engineering Planetary LASERs for Interstellar Communication

      Maryland University, College Park, MD, United States

      Document ID: 19880014441 N (88N23825)
      File Series: NASA Technical Reports

      Report Number: NASA-CR-180780 NAS 1.26:180780 UMAERO-88-5, 1988, May 01, Pages: 623
      Sales Agency & Price: CASI Hardcopy A99 CASI Microfiche A06 - Copyright
      NASA Access Help Desk
      E-mail: help@sti.nasa.gov
      Phone: (301) 621-0390 FAX: (301) 621-0134

      NASA Subject Category: SPACECRAFT DESIGN, TESTING AND PERFORMANCE

      Abstract - Transmitting large amounts of data efficiently among neighboring stars will vitally support any eventual contact with extrasolar intelligence, whether alien or human. Laser carriers are particularly suitable for high-quality, targeted links. Space laser transmitter systems designed by this work, based on both demonstrated and imminent advanced space technology, could achieve reliable data transfer rates as high as 1 kb/s to matched receivers as far away as 25 pc, a distance including over 700 approximately solar-type stars. The centerpiece of this demonstration study is a fleet of automated spacecraft incorporating adaptive neural-net optical processing active structures, nuclear electric power plants, annular momentum control devices, and ion propulsion. Together the craft sustain, condition, modulate, and direct to stellar targets an infrared laser beam extracted from the natural mesospheric, solar-pumped, stimulated CO2 emission recently discovered at Venus. For a culture already supported by mature interplanetary industry, the cost of building planetary or high-power space laser systems for interstellar communication would be marginal, making such projects relevant for the next human century. Links using high-power lasers might support data transfer rates as high as optical frequencies could ever allow. A nanotechnological society such as we might become would inevitably use 10 to the 20th power b/yr transmission to promote its own evolutionary expansion out of the galaxy.

      Major Subject Terms:
      Carbon dioxide LASERS, Interstellar Travel, Mars (Planet), Optical Communication
      Venus (Planet)

      Minor Subject Terms:
      Adaptive Control, ExtraTerrestrial Intelligence, Large Space Structures
      Project SETI, Space Commercialization, Spacecraft Design


    69. Inspection and Interception Methods of Defense Against Hostile Alien Satellites

      Kober, C. L., Inspection and Interception Methods of Defense Against Hostile Alien Satellites

      C. L. Kober /Martin Marietta Corp.,
      Martin Co., Denver Colorado

      Journal: AIAA Paper 63-197, Pages 5, 1963, June 01

      American Institute of Aeronautics and Astronautics (AIAA)
      New York, NY, United States

      NASA Subject Category: Structural Mechanics

      Abstract - Inspection and interception methods of defense against hostile alien satellites, with a brief study of weapons systems costs.

      Major Subject Terms:
      Costs, Economy, Inspection, Interception, Missile Defense
      Rendezvous, Weapon System Management, Weapon Systems

      Notes:
      Multimission Concept - Key to Weapon System Economy. C. L. Kober /Martin Marietta Corp., Martin Co., Denver, Colo./.
      American Institute of Aeronautics and Astronautics,
      Summer Meeting, Los Angeles, Calif., June 17-20, 1963, Paper 63-197. 5 P.
      Members, $0.50, Nonmembers, $1.00.


    70. Communication with ExtraTerrestrial Intelligences - Possibilities, Chances and Perspectives with Special Attention given to the Leaky-Embargo Hypothesis

      Fiebag, Johannes, Communication with ExtraTerrestrial Intelligences - Possibilities, Chances and
      Perspectives with Special Attention given to the Leaky-Embargo Hypothesis

      Journal: Astronautik Volume: 26 Page: 115-118, 1989, Dec 01, Pages 4

      Abstract - Present SETI projects are described, emphasizing search methods alternative to investigations in the radio range. The possibility that the human race is being studied by alien presences within the solar system is addressed in the context of the 'zoo hypothesis' and the 'leaky embargo' hypothesis. In the former, the aliens prevent any contact with humans, while in the latter occasional contact is permitted.

      Major Subject Terms:
      Project SETI, Radio Communication, Solar system

      Minor Subject Terms:
      ExtraTerrestrial Intelligence Hypothesis

      Language Note: German

      Notes:
      Astronautik (ISSN 0004-6221), vol. 26, Oct.-Dec. 1989, p. 115-118. In German.
      In German


    71. Alien Starship Detectability - Bursters and Skidmarks

      Matloff, Gregory L., Mallove, Eugene F., Alien Starship Detectability - Bursters and Skidmarks
      IAF PAPER 88-552, 1988, Oct 01, 5 pages

      Matloff, Gregory L., Baruch College,
      Mallove, Eugene F., Massachussets Institute of Technology

      Abstract - All starships may utilize electromagnetic drag screens to decelerate to interplanetary velocities when approaching destination solar systems. Observable characteristics of exothermic starships and deceleration drag screens are reviewed. A preliminary theory for the detectability of ramjet or ram-augmented interstellar rocket or drag screen trails is developed. The applicability of planned astronomical telescopes to starship searches is briefly discussed.

      Major Subject Terms:
      Interstellar Spacecraft, Project SETI, Signal Detection

      Minor Subject Terms:
      Antimatter, LASER Propulsion, Nuclear Electric Propulsion
      Language Note: English

      Notes:
      IAF, International Astronautical Congress, 39th, Bangalore, India, Oct. 8-15, 1988. 5 p.


    72. 65- ExtraTerrestrials: Science and Alien Intelligence

      Regis, E., Jr., ExtraTerrestrials: Science and Alien Intelligence
      Regis, E., Jr., Howard University
      1985, January 01, Pages: 288
      Cambridge and New York, Cambridge University Press, 1985, 288 p.
      No individual items are abstracted in this volume.

      Abstract - Scientific and philosophical issues related to the search for extraterrestrial intelligence (ETI) are examined. The possible existence and nature of ETI, extraterrestrial epistemology, and a solipsist approach to ETI are discussed. Consideration is given to the detectability and decipherability of extraterrestrial communications, the design of a language for cosmic communication, and the meaning and consequences of contact.

      Major Subject Terms:
      ExtraTerrestrial, Communication, ExtraTerrestrial Intelligence

      Minor Subject Terms:
      ExtraTerrestrial Life, Project SETI

      Language Note: English


    73. On Communications with Extra-Terrestrial or Alien Intelligences

      Haviland, R. P., On Communications with Extra-Terrestrial or Alien Intelligences
      British Interplanetary Society, Journal, vol. 28, Mar. 1975, p. 161-167.

      Abstract - The discussion deals with two questions: assuming a signal has been detected, does the signal contain a message. If so, how can it be deciphered. The concept of the message as a statistical variate is explained. When the suspected sequence of elements is examined for randomness, if any departure from randomness is found, the presence of a message is indicated. Detection of several independent organizations approaches proof of the existence of a message. In answer to the second question, some linguistic concepts are brought forward. A common experience and accord on a symbol for that experience are required for communications. Interspecies experiential differences make the first condition difficult to meet. It is argued that the frequency of the hydrogen line would constitute such a commonality. A search for a beacon frequency could commence not at integral multiples of this frequency, but at multiples by some universal constant, such as pi or e. A hypothetical interstellar message is given which first gives the code, i.e., Morse, in terms of number symbols, a likely common ground; then transmits the number pi in those symbols; then repeats the message.

      Major Subject Terms:
      Communication Theory, ExtraTerrestrial Life, Interstellar Communication, Signal Encoding,
      Space Communication

      Minor Subject Terms:
      Channels (Data Transmission), Information Theory, Multivariate Statistical Analysis,
      Random Processes, Signal Detection


    74. Possible ExtraTerrestrial Strategy for Earth

      Deardorff, J. W., Possible ExtraTerrestrial Strategy for Earth
      Deardorff, J. W., Oregon State University

      Royal Astronomical Society, Quarterly Journal (ISSN 0035-8738), vol. 27, March 1986, p. 94-101

      Abstract - A hypothesis concerning the nature of extraterrestrial messages to the earth is proposed. The hypothesis is based on the following assumptions about (1) that they exist in abundance in the Galaxy; (2) that they are benevolent toward earth-based life forms, and (3) that the lack of any human detection of extraterrestrials is due to an embargo designed to prevent any premature disclosure of their existence. It is argued that any embargo not involving alien force must be a leaky one designed to allow a gradual disclosure of the alien message and its gradual acceptance on the part of the general public over a very long time-scale. The communication may take the form of what is now considered magic, and may therefore be misinterpreted as 'magic' by or a hoax by contemporary governments and scientists.

      Major Subject Terms:
      Earth (Planet), ExtraTerrestrial Intelligence, ExtraTerrestrial Life

      Minor Subject Terms:
      Human Reactions, Interstellar Communication, Mental Performance, Milky Way, Galaxy


    75. A Language Based on the Fundamental Facts of Science

      Devito, C. L., Oehrle, R. T., A Language Based on the Fundamental Facts of Science
      Devito, C. L. Oehrle, R. T., Arizona University, Arizona, USA
      British Interplanetary Society, Journal (ISSN 0007-084X), vol. 43, Dec. 1990, p. 561-568.
      Research supported by the U.S. Navy and Research Corp.

      NASA Subject Category: Space Biology

      Abstract - The problem of how to communicate with the members of an alien society has been discussed by ma