NASA Astronauts to Conduct Spacewalk as Early as Monday, Dec. 21 “Expedition 46 Commander Scott Kelly and Flight Engineer Tim Kopra of NASA are preparing for a previously unscheduled spacewalk outside the International Space Station on either Monday, Dec. 21, or Tuesday, Dec. 22. The pair will move the station’s mobile transporter rail car so it can be latched in place ahead of the Wednesday, Dec. 23 docking of a […]