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  Mark Polansky (@Astro_127) | Twitter

  http://twitter.com/Astro_127

  Die neuesten Tweets von Mark Polansky (@Astro_127). Former Astronaut--3 Shuttle Missions (CDR STS-127 and STS-116, PLT STS-98)--Aerospace Executive supporting NASA and Commercial Space--Motivational Speaker--DAD!. Houston

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  Barack Obama auf Twitter: "The Crew Dragon’s been on quite a ride since I last saw it—congrats to @NASA and @SpaceX on a successful return! We invested in the @Commercial_Crew program to strengthen the U.S. space program for the long haul, and it’s great to see that happening.… https://t.co/eJVhuf5KTQ"

  https://twitter.com/barackobama/status/1104049983760805889

  Keine Beschreibung vorhanden.

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