1962 · Earth orbit
The Mercury astronauts' 'fireflies'
When1961 – 1963
WhereEarth orbit
Backing5 independent
Witnesses1 named
Evidencesensor data, official records
America's first astronauts reported company. John Glenn saw luminous 'fireflies' around his capsule; Scott Carpenter described reflective 'snowflakes', some moving faster than his craft; Wally Schirra saw an unexplained flash of light. In November 1962 Gordon Cooper told Walter Cronkite that 'a large number of exceptionally well-qualified people have seen objects' with no logical explanation. war.gov has released the flight audio and the Cronkite interview.
Evidence, in date order (5)
- 1962Scott Carpenter, MA-7 (war.gov flight audio)sensor dataReflective 'snowflakes', some moving faster than his craft war.gov video (on DVIDS): Carpenter's 'snowflakes', MA-7, 1962
- 1962Wally Schirra, MA-8 (war.gov flight audio)sensor dataAn unexplained flash of light war.gov video (on DVIDS): Schirra's flash of light, MA-8, 1962
- Nov 1962Gordon Cooper to Walter CronkitewitnessWell-qualified people have seen objects with no logical explanation war.gov video (on DVIDS): Cooper on UFOs, Cronkite interview, 1962
- Jul 1962war.govofficialAstronaut scientific debriefings war.gov: Astronaut scientific debriefings, 1962–63
- 1963Gordon Cooper, MA-9 (war.gov flight audio)sensor data'Fireflies' seen from orbit war.gov video (on DVIDS): Cooper's 'fireflies', MA-9, 1963
How plausible · High
Released flight audio and debriefings record several named astronauts' sightings.
- ●●Access Direct observation or instruments.
- ●●No gain sought Nothing to gain.
- ●●Restraint Reported plainly.
- ●●Character record Trained professionals.
- ●●Independent convergence Independent sources agree.
- ●●Checkable details check out Released official records.
Plausibility weighs how well an account fits where secrecy hides the documents by design, so missing records never count against it. Strength measures what is documented. Assessed 2026-10-23.
On the record
- Mercury flight audio from Carpenter (MA-7), Schirra (MA-8) and Cooper (MA-9).
- Cooper's 1962 interview with Walter Cronkite.
- NASA later attributed the fireflies to ice flaking off the spacecraft.
Claims
Cooper, who later spoke openly about UFOs, knew more than he could say on the record.speculationSourced, unconfirmedbelievers
war.gov files on this case (5)
PDFs (1)
PDFAstronaut Scientific Debriefings, 1962-1963NASA · Release 03 · 1962-1963
Audio (4)
AudioMercury Atlas 7, May 24, 1962NASA · Release 02 · 5/24/62
AudioMercury Atlas 8 Audio Excerpt, October 3, 1962NASA · Release 02 · 10/3/62
AudioMercury Atlas 9 Audio Excerpt, May 15, 1963NASA · Release 02 · 5/15/63
AudioMercury Atlas 9 Audio Excerpt, May 15, 1963NASA · Release 02 · 5/15/63
‹ Previous in Astronauts & spaceNASA, secrecy and the archive anomalies3 of 18Next in Astronauts & space ›Gemini 4
Similar cases · sharing people, threads, topics or era
Connected cases
People and organizations
Threads · click one to see it on the board
Sources
- Wikipedia: Gordon Cooper
- war.gov video (on DVIDS): Cooper on UFOs, Cronkite interview, 1962
- war.gov video (on DVIDS): Carpenter's 'snowflakes', MA-7, 1962
- war.gov video (on DVIDS): Schirra's flash of light, MA-8, 1962
- war.gov video (on DVIDS): Cooper's 'fireflies', MA-9, 1963
- war.gov: Astronaut scientific debriefings, 1962–63