Astronauts Terry Virts and Barry Wilmore will make the third spacewalk Sunday to complete the first in a series of work to outfit the International Space Station with the mechanisms needed for Commercial Crew spacecraft to dock to the orbiting laboratory. The two adapters were built by Boeing and will be carried to the station on upcoming SpaceX cargo missions. The adapters will serve the Boeing CST-100 and SpaceX Crew Dragon spacecraft when they fly astronauts to the station.
During Sunday’s spacewalk, Virts and Wilmore will deploy 400 feet of cable along the truss of the station and install antennas as part of the new Common Communications for Visiting Vehicles system that will provide rendezvous and navigational data to visiting vehicles approaching the station, including the new U.S. commercial crew vehicles.
NASA TV coverage Sunday will begin at 6 a.m. EST. The spacewalk will begin around 7:10 a.m. and is expected to last about 6 hours, 45 minutes. NASA TV is available online at https://www.nasa.gov/nasatv.