Live updates for NASA’s Artemis II launch with liftoff targeting 6:24 p.m. The mission will send four astronauts on a 10-day, ...
NASA astronaut Mike Massimino, left, and Sesame Street's Elmo speak at the STS-135 Tweetup on July 7, 2011 at Kennedy Space Center in Cape Canaveral, Fla. Elmo asked the astronauts questions about ...
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