In this Jan. 17, 2020 photo made available by SpaceX, NASA astronauts Bob Behnken, left, and Doug Hurley, wearing SpaceX spacesuits, walk through the Crew Access Arm connecting the launch tower to the SpaceX Crew Dragon spacecraft during a dress rehearsal at NASA's Kennedy Space Center in Cape Canaveral, Fla. For their May 27, 2020 mission, Hurley will be in charge of launch and landing and Behnken will oversee rendezvous and docking at the International Space Station. (SpaceX via AP)
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