Spacewalk Live-Stream Video

NASA astronaut Chris Cassidy (L) and European Space Agency astronaut Luca Parmitano (R), both Expedition 36 flight engineers at the International Space Station, attired in their Extravehicular Mobility Unit (EMU) spacesuits, participate in a “dry run” for the first of two sessions of extravehicular (EVA) scheduled for July 9 and July 16. NASA astronaut Karen Nyberg (C), flight engineer, assists Cassidy and Parmitano. (NASA)

At 7a.m. EDT, Tuesday, NASA Television coverage will begin of the 6.5-hour spacewalk as flight engineers at the International Space Station perform maintenance and upgrades. The walk begins at 8:10 a.m. EDT. 

It is the 170th spacewalk at the station. It is the fifth spacewalk for National Aeronautics and Space Administration’s (NASA’s) flight engineer Chris Cassidy and the first for engineer Luca Parmitano.  Flight engineer Karen Nyberg will control the 57-foot robotic arm, Canadarm2. Parmitano will ride the Canadarm2 to some worksites. 

The engineers will don their U.S. spacesuits and, alongside maintenance work, replace a failed Ku-band receiver box and route power cables for the new Russian Multipurpose Laboratory Module expected later this year. 

Live Stream of NASA TV, Spacewalk Coverage Starting 7 a.m. EDT