Just in case someone wanders in and wants to know: NASA - Apollo 11 Onboard Audio Database
Here's the whole. darn. mission. MET means Mission Elapsed Time. Right click the links and save as. This was put up for the 40th Anniversary of Apollo 11. NASA has materials on a number of different sites, so for the other missions, Google is your friend.
I found some Gemini audio on archive.org. Not sure if it's what the OP is looking for, but it's something. Gemini I : NASA : Free Download & Streaming : Internet Archive
This is the main NASA Audio page of archive.org: NASA Audio Collection : Free Movies : Download & Streaming : Internet Archive
NASA does not assert copyright on its media, it is all paid for by the taxpayers and is 'for all mankind'.
In addition to triggering samples, or jamming along with the tracks, these are good for feeding into granular synths for warping and mangling.