Documents / Hearing transcript

Symposium on unidentified flying objects: hearings before the Committee on Science and Astronautics, U.S. House of Representatives, Ninetieth Congress, second session, July 29, 1968.

U.S. House of Representatives · 1968-07-29 · 256 pages · text from the file's own layer

This is the printed record of a July 29, 1968 symposium on unidentified flying objects held by the Committee on Science and Astronautics of the U.S. House of Representatives, chaired by Rep. J. Edward Roush. The committee heard statements from six scientists: J. Allen Hynek, James E. McDonald, Carl Sagan, Robert L. Hall, James A. Harder and Robert M. L. Baker. It also printed papers from Donald Menzel, Stanton Friedman, Frank Salisbury and others. Hynek argued that puzzling UFO reports from competent witnesses deserve serious scientific study.

  • p. 7 …of advanced technological ma- chinery manned by some kind of intelligence, that is, the extrater- restrial…
  • p. 9 …American Association for the Advancement of Science; Astronomy Society(secretary). Specialty: Astrophysics. Fields of Interest: Stellar…
  • p. 19 …The Air Force has no evidence that UFO's are extra-terrestrial or rep- resent advanced…
  • p. 24 18 (The biography of Dr.McDonald follows:) DR. JAMES E. MCDONAI,D Born: Duluth, Minn., May…
  • p. 29 …from some advanced technology sufficiently advanced to do what we cannot do in the sense of…
  • p. 32 …The possibility that these are extraterrestrial devices, that we are dealing with surveillance from some advanced…
  • p. 40 …THE UNCONVENTIONAL NATURE OF THE UFO PROBLEM To both laymen and scientists, the impressive progress that…
  • p. 48 …At first, they thought it was a jet, whose exhaust was somehow accounting for the advancing…
  • p. 59 …advanced civilization of extraterrestrial origin, the pattern of the observa- tions, the motivation of the surveillance…
  • p. 75 …To ignore most of the salient features of a sighting in order to advance an easy…
  • p. 94 …Now, if we want to assess the likelihood that there are intelligentcivilizations somewhere in advance of…
  • p. 95 …be far in advance of our own,and this,therefore raises the question of how likely…
  • p. 96 …that an advance civilization comes here very rarely. But I again emphasize the great uncertainty in…
  • p. 97 91 So, to conclude what I understand is the main reason why this committee has asked…
  • p. 100 …the possibility of its development by other civilizations. But if each of, say, a million advanced…
  • p. 101 …a race of advanced and benign creatures were devoted to our welfare. The interest in unidentified…
  • p. 111 …The possible value of contact for purposes of advancing our knowledge of our technology. Let's…
  • p. 112 …again the same possible great value from under- standing the phenomenon in order to advance our…
  • p. 116 …We must then concern ourselves with the possible consequences of contact with technologically advanced civilizations whose…
  • p. 117 111 the task. We must also 'be concerned with the risks of panic resulting in people…
  • p. 124 …Gravitation remains one of the enigmas of modern science, although there have been some advances in…
  • p. 125 …This will depend upon advances in many fields of science. Some of the things required will…
  • p. 130 …Gravitation remains one of the enigmas of modern science, although there have been some advances in…
  • p. 132 …Baker's professional society memberships include the American Associa- tion for the Advancement of Science, Phi…
  • p. 140 …There have been many debates on the technical capabilities or limits on the capabilities of advanced…
  • p. 141 135 area of forecasting the social characteristics of an advanced extrater- restrial civilization. Philosophers, social scientists…
  • p. 142 …in the environs of the earth, or to make dubious speculations either concerning "their" advanced scientific…
  • p. 143 …the gross characteristics of an advanced civilization. These studies (probablynot Government funded) should include the social…
  • p. 150 …Applications and Advanced Topics, Academic Press, New York, pp. 112-115 and pp. 376 to 392…
  • p. 153 147 00015 "Recent Advances in Astrodynamics," (with Samuel Herrick), Jet Propul- sion, 28, No. 10, 1958…
  • p. 154 …00040 "State-of-the-Art-1960 Astrodynamics,"Astronautics, 5, No. 11, 30, 1960. 00041 "Novel Orbit…
  • p. 157 …Makemson) 00071 Astrodynamics - Applications and Advanced Topics, Academic Press, New York, 1967. 00072 "Recent Advances in…
  • p. 171 …In the past five years, he has advanced from assistant bookkeeper to teller to head teller…
  • p. 174 …He has no desire to advance any further up the bank totem pole, says he never…
  • p. 189 …advanced radar systems air being de- vekii2ed for our missile defense systems, such as the ALTAR…
  • p. 190 …of the Earth or to make very dubious speculations 191, t101 either concerning "their" advanced scientific…
  • p. 203 …The primary attribute of an advanced intelligent civilization is its ability to create its own environment…
  • p. 204 …Menzel became acting Director of Harvard College Observatory and, in 1954, was advanced to the Directorship…
  • p. 207 …approach it or advances as you move away. As we look over the Air Force files…
  • p. 210 …Or at least that is the com- mon argument advanced by UFO buffs. Radar is cursed…
  • p. 212 …Life Member of American Association for the Advancement of Science. Professional Organizational Activities: State delegate to…
  • p. 217 …our level of advancement? As noted in the Special Report of the USAF Scientific Advisory Board…
  • p. 219 …Friedman has a relatively unique background in advanced technology, hav- ing been actively involved in the…
  • p. 222 …the existence of advanced civilizations. We frequently forget that the resolution of present photographs of the…
  • p. 223 …36, 37) and the American Association for the Advancement of Science is planning a UFO seminar…
  • p. 224 …reason, would not examine the data relevant to UFOs or advanced technology. Marcowitz was totally wrong…
  • p. 225 …reason, would not examine the data relevant to UFOs or advanced technology. Marcowitz was totally wrong…
  • p. 226 …B., "The Phenomenological Aspects of Magnetogasdynamic Re-entry." Presented at the 10th Midwestern Mechanics Conference, Colorado…
  • p. 227 …not alone in the Universe and surely some civilizations are more advanced than ours, but interstellar…
  • p. 233 …possible sites in advance, we could simply move in to recover the desired information after an…
  • p. 234 …The effectiveness of the proposed procedure would depend very heavily upon the amount of thought, care…
  • p. 237 …listed in advance on a 'standardized rating sheet. However this part of the experiment will not…
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215
TABLE 1.—CATEGORIZATION OF UFO SIGHTING REPORTS 1
Category Number Percent
Astronomical 479 21. 8
Aircraft 474 21.6
Balloon 339 15.4
Other 233 10. 6
Unknown 434 19.7
Insufficient information 240 10.9
Total 2,199 100
1 Data from reference 3. TABLE 2.—QUALITY DISTRIBUTION OF UNKNOWNS 1
Quality Number Percent of
total Unknowns Percent of
group
3
Excellent 213 9.7 71 33.8
Good 757 34.5 188 24.0
Doubtful 794 36.0 103 13.
Poor 435 19. 8 72 16. 6
Total 2, 199 100.0 434 19. 7
1 Data from reference 3.
5. Aren't most of those "unknowns" really sightings for which insufficient
data is available to identify an otherwise conventional object?
Absolutely not. If there was not enough information available about a sighting
it was labelled "Insufficient Information" not "Unknown"—again contrary to
what many people believe about UFOs.
6. Were there any differences between the Unknowns and the knoVvns?
A "chi square" statistical analysis was performed comparing the Unknowns
in this study to all the "knowns". It was shown that the probability that the
unknowns came from the same population of sighting reports as the knowns was
less than 1%. This was based on apparent color, velocity, etc. Maneuverability,
one of the most distinguished characteristics of UFOs, was not included in this
statistical analysis.
7. Weren't most sightings of very short duration, say less than a minute?
The average duration of the sightings labelled as "Unknown" was greater
than that for the knowns. More than 70% of the unknowns were under observa-
tion for more than 1 minute and more than 45% for more than 5 minutes.
8. Isn't it true that UFOs have never been sighted on radar?
No, it is not. Ref. 3 specifically mentions radar unknowns. In ref. 4, Edward
Ruppelt, former head of the official UFO investigative effort, makes specific
mention of not only "Unknowns" observed on radar but of combined visual and
radar "Unknowns". Hynek 5 also mention radar and visual sightings.
9. Where can I get more information about"Unknowns"?
Ref. 6 presents an unbiased description of about 160 "Unknowns". Ref. 7 in-
cludes data on over 700 Unknowns. References 8 and 9 contain many others.
10. Why haven't the worldwide Smithsonian Network of Satellite Tracking
cameras picked up "Unknowns"?
The former head of the film evaluation group concerned with the Smithsonian
sky watch said" that the purpose of the search was to get data on satellite
orbits. If a light source on the film could be shown not to be a satellite then no
further measurements were made. 10% to 15% of the plates showed anomalous
light sources which were not a satellite but were not otherwise identified.
11. How about the other space surveillance radar installations?
Baker in Ref. 11 deals with this question in detail. In summary, the systems
are set up to reject signals which refer to anything other than the objects of
interest—typically ballistic missiles coming from certain directions.
12. Aren't the reported maneuvers of UFOs in violation of existing laws of
physics?
Footnotes at the end bf article.

Cases discussed

About this file

Hearing transcript, from the govinfo collection. The PDF is mirrored here; the original link is above. 256 pages are in the text index: search them above, or from the library's search.