Shannon Walker (born 4 June 1965 in Houston, Texas) is an American scientist and a NASA astronaut whose first space mission was Expedition 24 on the International Space Station with take-off on 15 June 2010. In March 2017, NASA announced that Walker will train as backup for Joseph Acaba for Expedition 53/54 to the International Space Station. On 31 March 2019, NASA announced Walker will accompany astronauts Michael Hopkins and Victor Glover Jr., as well as Soichi Noguchi of the Japan Aerospace Exploration Agency (JAXA), on the Crew-1 mission to the International Space Station, the first operational flight of the SpaceX Crew Dragon spacecraft.
Shannon Walker (born 4 June 1965 in Houston, Texas) is an American scientist and a NASA astronaut whose first space mission was Expedition 24 on the International Space Station with take-off on 15 June 2010. In March 2017, NASA announced that Walker will train as backup for Joseph Acaba for Expedition 53/54 to the International Space Station.