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Artemis II commander and pilot become NASA's first astronaut emeriti

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Artemis II crew flew fast, earned new patch: Astronauts' Mach 39 emblem

"It is actually challenging how you measure [Mach] from space."

Space 100 Days A-B Emblem artemis II astronauts badge Christina Koch Dan Brandenstein emblem fastest people alive insignia international space station iss Jeremy Hansen Jim Buchli Mach 25 Mach 26 Mach 39 Maxa 25 NASA orion patch Reid Wiseman space collectible Space exploration space history space memorabilia victor glover