Space Selfie! It's been said that it's difficult to get a good selfie while wearing a spacesuit, but an astronaut snapped this one during a spacewalk on April 23 outside the International Space Station! Astronauts Steve Swanson and Rick Mastracchio completed a short spacewalk to replace a failed Multiplexer/Demultiplexer (MDM) back up computer. The backup computer failed April 11 after a routine health check by the Mission Control team in Houston. Image Credit: NASA #iss #exp39 #nasa #space #spacestation #station #selfie #globalselfie #earth #swanny