Two NASA astronauts from the International Space Stations Expedition 42 crew will venture outside the orbital complex on Friday, Feb. 20; Tuesday, Feb. 24; and Sunday, March 1. They will prepare cables and communications gear for new docking ports that will allow future crews launched from Florida on U.S. commercial spacecraft to dock to the space station.

NASA TV will provide comprehensive coverage, beginning with a preview news briefing Wednesday, Feb. 18.

The preview briefing will be broadcast at 2 p.m. EST from NASAs Johnson Space Center in Houston. Media may take part in person or by telephone. Reporters who want to ask questions by phone must call Johnsons newsroom at 281-483-5111 no later than 1:45 p.m. Wednesday. Cell phones are discouraged.

The panelists for the briefing are:

Kenneth Todd, International Space Station Operations and Integration manager

Tomas Gonzalez-Torres, Expedition 42 lead flight director

Karina Eversley, Extravehicular Activity (EVA) # 29 officer

Sarah Korona, EVA # 30 officer

Arthur Thomason, EVA # 31 officer

Expedition 42 Commander Barry Wilmore and Flight Engineer Terry Virts will exit the station from the Quest airlock for each of the three spacewalks around 7:10 a.m. NASA TV coverage of the approximately six-and-a-half hour spacewalks will begin at 6 a.m.

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NASA TV Previews and Broadcasts Space Station U.S. Spacewalks