Apollo 10 (May 18–26, 1969) was a [spaceflight], the fourth crewed mission in the United States Apollo program, and the second (after Apollo8) to orbit the Moon.
After orbiting the Moon 31 times, Apollo 10 returned safely to Earth, and its success enabled the first actual landing (Apollo 11) two months later. Apollo 10 set the record for the highest speed attained by a crewed vehicle: 39,897 km/h (11.08 km/s or 24,791 mph) on May 26, 1969, during the return from the Moon. The mission's call signs were the names of the Peanuts characters Charlie Brown and Snoopy, who became Apollo 10's semi-official mascots.
This maneuver was unlike the fate of the subsequent Apollo 11 ascent stage, which was left in lunar orbit to eventually crash (post-Apollo 11 ascent stages were steered into the Moon to obtain readings from seismometers placed on the surface, except for Apollo 13's ascent stage, which the crew used as a "life boat" to get safely back to Earth before releasing it to burn up in Earth's atmosphere). Snoopys ascent stage orbit was not tracked after 1969, and its current location is unknown.
It is the only once-crewed spacecraft still in outer space without a crew. Splashdown occurred in the Pacific Ocean on May 26, 1969, at 16:52:23 UTC, about east of American Samoa.
69-68, May 7, 1969 (from NASA Program History Office) Apollo 10 Press Kit (PDF), NASA, Release No.
69-68, May 7, 1969 (from NASA Technical Reports Server) The Apollo Spacecraft: A Chronology NASA, NASA SP-4009 "Apollo Program Summary Report" (PDF), NASA, JSC-09423, April 1975 "Table 2-38.
Apollo 10 Characteristics" from NASA Historical Data Book: Volume III: Programs and Projects 1969–1978 by Linda Neuman Ezell, NASA History Series (1988) Multimedia Apollo 10: "To Sort Out the Unknowns" Official NASA/JSC documentary film, JSC-519 (1969) Apollo 10 16mm onboard film part 1, part 2 raw footage taken from Apollo 10 Apollo 10 Moon Orbit Orbital footage of Moon from Apollo 10 Mission Transcripts: Apollo 10 at NASA's Lyndon B.
Johnson Space Center (JSC) Images from Apollo 10 Apollo launch and mission videos at ApolloTV.net Spacecraft launched in 1969 1969 in the United States Apollo 10 Crewed missions to the Moon Peanuts (comic strip) Spacecraft which reentered in 1969 Articles containing video clips May 1969 events Spacecraft launched by Saturn rockets John Young (astronaut) Gene Cernan Thomas P.
The idea was to give children a way to identify with the mission by using humor. ==Hardware disposition== The Smithsonian has been accountable for the command module Charlie Brown since 1970.
69-68, May 7, 1969 (from NASA Technical Reports Server) The Apollo Spacecraft: A Chronology NASA, NASA SP-4009 "Apollo Program Summary Report" (PDF), NASA, JSC-09423, April 1975 "Table 2-38.
The spacecraft was on display in several countries until it was placed on loan to the London Science Museum in 1978.
In 2011, a group of amateur astronomers in the UK started a project to search for it.
The insignia was designed by Allen Stevens of Rockwell International. =="Space music" mystery== In February 2016 Discovery Channel broadcast a TV show suggesting that the mission witnessed mysterious or alien signals while on the far side of the Moon.
In 2019, the Royal Astronomical Society announced a possible rediscovery of Snoopy, determining that small Earth-crossing asteroid 2018 AV2 is likely the capsule with "98%" certainty.
In 2019, the Royal Astronomical Society announced a possible rediscovery of Snoopy, determining that small Earth-crossing asteroid 2018 AV2 is likely the capsule with "98%" certainty.
On June 10, 2019, Nick Howes, a fellow of the Royal Astronomical Society, announced that he and his colleagues had located Snoopy, whose location was previously unknown, based on radar astronomy data with 98% certainty. Snoopy's descent stage was jettisoned in lunar orbit; its current location is unknown.
An amateur astronomy blog begun in early 2020 explored the possibility that the descent stage may still be in lunar orbit, using computer simulation. ==Mission insignia== The shield-shaped emblem for the flight shows a large, three-dimensional Roman numeral X sitting on the Moon's surface, in Stafford's words, "to show that we had left our mark".
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