Gemini flown artifacts are among the hardest to find on the market

The North American X-15 rocket plane was part of the USAF/NASA/USN X-series of experimental aircraft and set numerous speed and altitude records in the early 1960s

Physical characteristics: Two identically appearing stones (670 and 600 g) found together at the Gadamis 002 site

A real rock from Mars - NWA 6710 - Martian

STS-82 Hubble – FLOWN bay liner presentation Challenger Gemini flown artifacts are amongSTS 82 Discovery flown payload bay liner 8x6'' laminated presentation containing a flown payload bayliner fragment from the Space Shuttle Discovery flown on STS 82. Originally issued by renowned Space expert Ken Havekotte.