Social News22 May 2017 NASA TV Coverage Set for May 23 Space Station Contingency Spacewalk NASA astronauts Peggy Whitson and Jack Fischer are preparing for an unscheduled spacewalk outside the International Space Station Tuesday, May 23. Live coverage will begin at 6:30 a.m. EDT onContinue readingNASA TV Coverage Set for May 23 Space Station Contingency Spacewalk