International Space Station Astronauts Conduct Third Spacewalk in Eight Days

Outside the International Space Station, Expedition 42 Commander Barry Wilmore and Flight Engineer Terry Virts of NASA conducted their third spacewalk in eight days March 1 to install antennas and communications gear that will be used to provide rendezvous and navigational information to visiting vehicles approaching the complex in the future, including the new U.S. commercial crew vehicles. Wilmore and Virts installed about 400 feet of cable along the truss of the station as part of the new Common Communications for Visiting Vehicles (C2V2) system. In two previous spacewalks on Feb. 21 and Feb. 25, the two astronauts rigged cables for new International Docking Adapter ports that will be delivered to the complex this year and lubricated the grappling end of the Canadian-built Canadarm2 robotic arm.