Expedition 39 Spacewalkers Ready for Critical EVA-26 Tomorrow

 

During preparations for EVA-26 on 17 April, Steve Swanson works inside the Quest airlock. Photo Credit: NASA

Expedition 39 spacewalkers Rick Mastracchio and Steve Swanson will venture outside the International Space Station (ISS) early Wednesday, 23 April, to remove and replace a failed backup Multiplexer-Demultiplexer (MDM) on the Mobile Base System (MBS). […]