(2021年2月12日). "NASA astronauts @astro_kjell and Bob Hines have been assigned to launch on the agency's @SpaceX Crew-4 mission to the @Space_Station. The mission is
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Demo-2" と呼称している。 ^ a b “Crew Dragon SpX-DM2”. Spacefacts. 31 May 2020閲覧。 ^ “Astronauts gear up for spacewalks amid planning for August Crew Dragon return”. Spaceflight