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pdfNASA1973NASA-UAP-D5, Apollo 17 Crew Debriefing for Science, 1973
Apollo 17 was the ninth crewed U.S. mission to the Moon, and the sixth to land Astronauts on the lunar surface. This document is an excerpt from the Apollo 17 Crew Debriefing for Science on January 8, 1973, in which Dick Henry, co-investigator on the ultraviolet experiment on Apollo 17, discusses seeing results that were unexpected. • Pages 119-120. “One of the most exciting results of X-ray astronomy was the fact that an X-ray background was observed over the sky that nobody had expected, and part of this is the gamma-ray background that Dr. Trombka talked about. In the UV, nobody knows, but you never know until you look. You do have to deal with this background of stars that we know is there. So, we did look at a large number of different points at high galactic latitudes, both north and south. The spectrum that we see is above this dark count. In other words, this abnormally high dark current did not, in fact, interfere with that experiment. The spectrum that we see looks like the spectrum of the hot star; however, we know that there were no hot stars within our field of view. Therefore, the most conservative interpretation, I think, is that what we're seeing is light from hot stars in the galactic plane going up out of the plane and reflecting off interstellar dust. There are certain characteristics of the spectrum, though, that don't fit that theory, and it's at least possible that this is extragalactic radiation. I'm looking forward very much to the detailed computer study of this, but it's going to take a long time.”
pdfNASA1973NASA-UAP-D6, Apollo 17 Technical Crew Debriefing, 1973
Apollo 17 was the ninth crewed U.S. mission to the Moon, and the sixth to land Astronauts on the lunar surface. This document is an excerpt from the Apollo 17 Technical Crew Debriefing on January 4, 1973, in which astronaut Harrison Schmitt reported seeing light flashes. • Page 24-4. [Lunar Module Pilot Harrison Schmitt]: “We had light flashes just about continuously during the whole flight when we were dark adapted. I had one which I thought was a flash on the lunar surface. That one period of time when we had the blindfolds on for the ALFMED [Apollo Light Flash Moving Emulsion Detector] experiment there were just no visible flashes, although that evening, that night, before I went to sleep, I noticed that I was seeing the light flashes again.”
pdfNASA1973NASA-UAP-D7, Skylab Techincal Crew Debriefing 1973
Launched on May 14, 1973, Skylab was the United States’ first laboratory in space. From 1973 to 1974, the station was visited by three crews. This document contains excerpts from all three crews to visit the station. In the first excerpt taken from Skylab 1/2 [first crew] Technical Debriefing from June 30, 1973, highlights crew observations of light flashes. The second excerpt taken from Skylab 1/3 Technical Crew Debriefing from October 4, 1973, highlights two observations—a satellite in similar orbit and another object with a “reddish hue to it.” The final excerpt taken from the Skylab 1/4 Technical Crew Debriefing from February 22, 1974, highlights an observation of flashing lights outside Skylab. • Skylab 2 crew observation: o Page 23-20. [Science Pilot for Skylab 2, Joesph Kerwin] “We saw light flashes. I think all of us saw them. I saw them most often when I was in the sack at night with my eyes closed but awake naturally. They tended to wax and wane in frequency.” • Skylab 3 crew observations: o Page 7-4. [Science Pilot for Skylab 3, Owen Garriott] “We saw that satellite about a week before splashdown. That was one of the most unusual things that we saw and I guess Jack [Lousma] noticed it looking out the window. This bright reddish object was out there and we tracked it for about 5 or 10 minutes. It was obviously a satellite in a very similar orbit to our own.” o Page 20-1. [Science Pilot for Skylab 3, Owen Garriott] “Jack [Lousma] first noticed this rather large red star out the wardroom window. Upon close examination, it was much brighter than Jupiter or any of the other planets. It had a reddish hue to it, even though it was well above the horizon.” • Skylab 4 crew observation o Page 7-8. [Commander for Skylab 4, Gerald P. Carr] “One other area of unusual events that we reported on the dump tapes was that on occasion we saw some lights flashing outside with very a definite motion relative to ours. We presumed that they were other pieces of Skylab, or possibly other satellites.”