Astronaut Sally Ride (b.1951) died on July 23. In 1983, Ride became the first American woman (and youngest at that time) astronaut to fly into space when she flew on Challenger flight STS-7. Prior to that she worked on the development of the shuttle’s robotic arm. She flew on Challenger again in 1984 and was in training for a third flight when Challenger explored. Ride left NASA in 1987 and taught physics. In 2003, she served on the Space Shuttle Columbia Accident Investigation Board.
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