Apollo 17 Transcript, 1972

This NASA document contains excerpts from the Apollo 17 air-to-ground voice transcription from 1972. The crew reports bright, jagged fragments drifting past the spacecraft after S-IVB separation, and later describes a distant flashing, rotating object that Jack thinks is the S-IVB. Gene also describes light flashes he saw with his eyes closed. Other passages cover weather over Hawaii and the Solomon Islands, and a flash seen on the lunar surface north of Grimaldi.

From the source: Release of 2026-05-08 Incident: 1972, Moon. 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 Air-to-Ground Voice Transcription, December 1972, highlighting three periods in which astronauts reported observing unidentified phenomenon: a nine minute period on the first day, a three hour period on the second day, and a six minute period on the third day. • Day 00, Hour 03, Minute 34, Second 10 through Day 00, Hour 03, Minute 42, Second 29: o Command Module Pilot (CMP), Ronald Evans, reported observing “very bright particles or fragments” drifting and “tumbling” near the spacecraft as it maneuvered. Lunar Module Pilot (LMP), Harrison “Jack” Schmitt, described the phenomenon as looking “like the Fourth of July.” The astronauts speculated that the phenomenon may be attributable to ice or paint fragments dislodging from a separated component of the spacecraft (S-IVB) but characterized that assessment as a “wild guess.” • Day 02, Hour 18, Minute 42, Second 34 through Day 02, Hour 21, Minute 07, Second 05: o Mission Commander, Eugene A. Cernan, reported difficulty sleeping and described having observed “some sets of the streaks.” He also described an intense light flashing between his eyes, describing its intensity as comparable to that of a train headlight and characterizing it as “imposing.” Over the next three hours, Cernan described observing several flashing, rotating phenomenon that he assessed as corresponding to physical objects in space rather than a purely optical phenomenon. LMP Schmitt also reported observing similar phenomenon, though he again assessed the source of his observation to be a separated rocket stage (S-IVB). At 02:20:55:22, Cernan reported observing two additional distant flashing objects, though he assessed them as Spacecraft/Lunar Module Adapter panels (SLA panel), another separated component of the Saturn V rocket. • Day 03, Hour 15, Minute 33, Second 25 through Day 03, Hour 15, Minute 39, Second 46: o At 03:15:38:09, LMP Schmitt exclaimed that he had observed a flash on the lunar surface north of Grimaldi (crater).

Tape 60/2
CC Roger.
LMP That's the small craters. There, in the Mare
Procellarum closest to Grimaldi, there are two
arcuate rilles. Look like they are probably
V-shaped in their cross section. I'm sure we've
seen those on the photographs much better than I
can see them here. Those - the rille patterns,
though, do seem to project over into the highlands.
CC Okay.
LMP To the north of that - to the north of that bay
of mare. Just interrupt.
03 15 38 09 LMP Hey, I just saw a flash on the lunar surface!
CC Oh, yes?
LMP It was just out there north of Grimaldi. Just
north of Grimaldi. You might see if you got any
thing on your seismometers, although a small impact
probably would give a fair amount of visible light.
CC Okay. We'll check.
LMP It was a bright little flash right out there near
that crater. See the crater right at the edge of
Grimaldi. Then there is another one north of it.
Fairly sharp one north of it is where there was
just a thin streak of light.
CC How about putting an X on the map where you saw it.
LMP I keep looking occasionally for - yes, we will.
I - I was planning on looking for those kind of
things. Starting to see the edge of Orientale,
Gordy. Way off to the west. Hey, just yell,
Gene, anytime you - -
03 15 39 46 LMP Gordy, to the north of Grimaldi there is a large
basin that is about the same size but only incom
pletely filled with mare in its northeastern
quadrant. The rest of it looks like a fairly ir
regular and hummocky floor material of some kind.
CC Roger,