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Astronauts wrap up successful spacewalk to fix station

Two NASA astronauts wrapped up successful repairs at the International Space Station on Tuesday after a rare Christmas Eve spacewalk to fix an equipment cooling system. Americans Rick Mastracchio, 53, and Mike Hopkins, 44, floated outside the orbiting lab for seven and a half hours to replace an ammonia pump whose internal control valve failed on December 11.

Astronauts wrap up successful spacewalk to fix station

Two NASA astronauts wrapped up successful repairs at the International Space Station on Tuesday after a rare Christmas Eve spacewalk to fix an equipment cooling system. Americans Rick Mastracchio, 53, and Mike Hopkins, 44, floated outside the orbiting lab for seven and a half hours to replace an ammonia pump whose internal control valve failed on December 11.

Spacewalking astronauts complete repairs to station

Washington, Dec 24 (EFE).- Making their second spacewalk in four days, NASA astronauts Rick Mastracchio and Mike Hopkins on Tuesday completed the replacement of a faulty cooling pump on the International Space Station. Mastracchio and Hopkins spent 7 1/2 hours outside the ISS. "Power was successfully restored to the ammonia pump module," NASA said. "However, flight controllers will perform more tests before restarting the pump and returning it to full functionality." Tuesday's excursion was the second Christmas Eve spacewalk in the history of NASA.

Astronauts wrap up successful spacewalk to fix station

Two NASA astronauts wrapped up successful repairs at the International Space Station on Tuesday after a rare Christmas Eve spacewalk to fix an equipment cooling system. Americans Rick Mastracchio, 53, and Mike Hopkins, 44, floated outside the orbiting lab for seven and a half hours to replace an ammonia pump whose internal control valve failed on December 11.

NASA astronauts step out on Christmas Eve spacewalk

Two NASA astronauts stepped out Tuesday on a rare Christmas Eve spacewalk to wrap up repairs to an equipment cooling system at the International Space Station. Americans Rick Mastracchio, 53, and Mike Hopkins, 44, floated outside the orbiting lab on a second outing to replace an ammonia pump whose internal control valve failed on December 11. Their task was to retrieve a spare pump module from an external stowage platform and install it. Despite recent concerns about leaking spacesuits, the spacewalk got off to a smooth start.

NASA astronauts step out on Christmas Eve spacewalk

Two NASA astronauts stepped out Tuesday on a rare Christmas Eve spacewalk to wrap up repairs to an equipment cooling system at the International Space Station. Americans Rick Mastracchio, 53, and Mike Hopkins, 44, floated outside the orbiting lab on a second outing to replace an ammonia pump module whose internal control valve failed December 11. Their task was to retrieve a spare pump module from an external stowage platform and install it and, despite recent concerns about leaking spacesuits, the spacewalk got off to a smooth start.

Astronauts leave space station to replace cooling pump

By Irene Klotz CAPE CANAVERAL, Florida (Reuters) - Two NASA astronauts floated outside the International Space Station on Tuesday for a second and final spacewalk to fix the outpost's critical cooling system. Flight engineers Rick Mastracchio and Mike Hopkins were slated to spend about 6 1/2 hours outside the station to install a new ammonia cooling system pump. A nonworking unit was removed during a spacewalk on Saturday.

NASA astronauts step out on Christmas Eve spacewalk

Two NASA astronauts stepped out Tuesday on a rare Christmas Eve spacewalk to complete repairs at the International Space Station. "The 10th spacewalk of the year at the International Space Station is now officially under way," a NASA commentator said at 6:53 am (1153 GMT), marking the start of the second of two outings to replace an ammonia pump module whose internal control valve failed December 11. The main task of the day is to retrieve a spare pump module from an external stowage platform and install it.

NASA astronauts step out on Christmas Eve spacewalk

Two NASA astronauts stepped out Tuesday on a rare Christmas Eve spacewalk to complete repairs at the International Space Station. "The 10th spacewalk of the year at the International Space Station is now officially under way," a NASA commentator said at 6:53 am (1153 GMT), as astronauts made a second outing to replace an ammonia pump module whose internal control valve failed December 11. The main task of the day is to retrieve a spare pump module from an external stowage platform and install it.

Astronauts poised for second spacewalk to repair station

Two American astronauts prepared to step out Tuesday on a rare Christmas Eve spacewalk to wrap up repairs to the cooling system at the International Space Station, NASA said. The spacewalk is set to begin at 7:10 am (1210 GMT), marking the second outing to replace an ammonia pump module whose internal control valve failed December 11. "The two spacewalkers will retrieve a spare pump module from an external stowage platform and install it in the currently vacated slot to restore full cooling capability for the complex," NASA said.
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