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ISS042E292494 (03/01/2015) --- U.S. astronauts Barry "Butch" Wilmore and Terry Virts performed three separate spacewalks to prepare the International Space Station for upcoming U.S. commercial spacecraft currently in development. Virts tweeted this image on March 1, 2015 with the comment "Still thinking about that #awesome #spacewalk yesterday with #AstroButch!"
