Editing Apollo 10 (section)

==Hardware disposition==
[[File:Apollo 10 Command Module (Science Museum - London) (Closer Vie).jpg|thumb|Command module at London's [[Science Museum, London|Science Museum]] (August 2023)]]
The Smithsonian has been accountable for the command module ''Charlie Brown'' since 1970. The spacecraft was on display in several countries until it was placed on loan to the [[Science Museum (London)|London Science Museum]] in 1978.<ref>{{Cite magazine |title=Command Module, Apollo 10 |url=https://airandspace.si.edu/collection-objects/command-module-apollo-10 |url-status=dead |archive-url=https://web.archive.org/web/20181210111427/https://airandspace.si.edu/collection-objects/command-module-apollo-10 |archive-date=December 10, 2018 |access-date=December 9, 2018 |magazine=Smithsonian}}</ref> ''Charlie Brown'''s SM was jettisoned just before re-entry and burned up in the Earth's atmosphere, its remnants scattering in the Pacific Ocean.{{sfn|Orloff|2004|pp=72–79}}

After [[translunar injection]], the Saturn V's S-IVB third stage was accelerated past Earth [[escape velocity]] to become [[space debris]]; {{as of|2020|lc=y}}, it remains in a heliocentric orbit.<ref name="ha20130923">{{Cite web |title=Saturn S-IVB-505N – Satellite Information |url=http://www.heavens-above.com/SatInfo.aspx?satid=3943&lat=0&lng=0&loc=Unspecified&alt=0&tz=UCT |access-date=September 23, 2013 |website=Satellite database |publisher=Heavens-Above}}</ref>

The ascent stage of the Lunar Module ''Snoopy'' was jettisoned into a heliocentric orbit. ''Snoopy'''s ascent stage orbit was not tracked after 1969, and its whereabouts were unknown. In 2011, a group of amateur astronomers in the UK started a project to search for it. In June 2019, the [[Royal Astronomical Society]] announced a possible rediscovery of ''Snoopy'', determining that small Earth-crossing asteroid 2018&nbsp;AV<sub>2</sub> is likely to be the spacecraft with "98%" certainty.<ref>{{Cite news |last=David Dickinson |date=June 14, 2019 |title=Astronomers Might Have Found Apollo 10's "Snoopy" Module |url=https://www.skyandtelescope.com/astronomy-news/astronomers-might-have-found-apollo-10-snoopy-module/ |access-date=June 14, 2019 |work=Sky & Telescope}}</ref> It is the only once-crewed spacecraft known to still be in outer space without a crew.<ref name="snoopysearch">{{Cite news |last=Thompson |first=Mark |date=September 19, 2011 |title=The Search for Apollo 10's 'Snoopy' |url=http://news.discovery.com/space/apollo-10-search-snoopy-astronomy-110919.html |url-status=dead |archive-url=https://web.archive.org/web/20120807120456/http://news.discovery.com/space/apollo-10-search-snoopy-astronomy-110919.html |archive-date=August 7, 2012 |access-date=June 26, 2013 |work=Discovery News |publisher=[[Discovery Communications]] |df=mdy-all}}</ref><ref name="snoopysearch2">{{Cite news |last=Pearlman |first=Robert Z. |author-link=Robert Pearlman |date=September 20, 2011 |title=The Search for 'Snoopy': Astronomers & Students Hunt for NASA's Lost Apollo 10 Module |url=http://www.space.com/13010-snoopy-nasa-lost-apollo-10-lunar-module-search.html |access-date=June 26, 2013 |publisher=[[Space.com]]}}</ref>

''Snoopy's'' descent stage was jettisoned in lunar orbit; its current location is unknown, though it may have eventually crashed into the Moon as a result of orbital decay.<ref>{{Cite web |title=Apollo 10 – NSSDCA/COSPAR ID: 1969-043A |url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1969-043A |access-date=August 3, 2022 |publisher=NASA}}</ref> Phil Stooke, a [[planetary science|planetary scientist]] who studied the lunar crash sites of the LM's ascent stages, wrote that the descent stage "crashed at an unknown location",<ref>{{Cite web |last=Stooke |first=Phil |date=February 20, 2017 |title=Finding spacecraft impacts on the Moon |url=https://www.planetary.org/blogs/guest-blogs/2017/0207-finding-spacecraft-impacts-on-the-moon.html |access-date=August 6, 2022 |publisher=[[The Planetary Society]]}}</ref> and another source stated that the descent stage "eventually impact(ed) within a few degrees of the equator on the near side".{{sfn|Launius & Johnston|pp=104–105}} Richard Orloff and [[David M. Harland]], in their sourcebook on Apollo, stated that "the descent stage was left in the low orbit, but perturbations by '[[Mass concentration (astronomy)|mascons]]' would have caused this to decay, sending the stage to crash onto the lunar surface".{{sfn|Orloff & Harland|p=261}}