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jsc2021e062995 (December 6, 2021) --- Christopher Williams, one of 10 NASA astronaut candidates, is seen waving during the 2021 ASCAN announcement event, Dec. 6, 2021, at Ellington Field near NASA’s Johnson Space Center in Houston, Texas. After completing two years of training, the new astronaut candidates could be assigned to missions performing research on the International Space Station, launching from American soil on spacecraft built by commercial companies, and launching on Artemis missions to the Moon on NASA’s new Orion spacecraft and Space Launch System rocket. Credit: NASA/ James Blair
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