US Discovery astronauts step out on last spacewalk (AFP)
WASHINGTON (AFP) – Two US astronauts on weekday stepped discover on the second and test spacewalk of the Discovery shuttle assignment at the International Space Station to impact on repairs at the orbiting lab.
"Once again rock stars, very impressive impact today," said traveler Nicole Stott, who choreographed the spacewalk from exclusive the expanse station, as the pair enwrapped up their impact after six hours and 14 minutes.
Steve Bowen and Alvin Drew embarked on their second spacewalk together at 1542 GMT to complete impact on a unsuccessful ammonia pump, vanish artefact on the Tranquility power and establish spare parts on the Canadian mechanism Dextre.
The walk was shortly suspended by a minor revealing in dweller Steve Bowen's spacesuit, caused by a imperfect O-ring seal in a metal compound canister that garment discover carbon dioxide. A newborn O-ring was installed to replace it.
Bowen was a New addition to the six-member US crew that blasted soured aboard the Discovery on Feb 24, after traveler Tim Kopra was scraped in a bicycle accident.
Kopra, who was stagnant with the help of crutches, was among colleagues at assignment control in metropolis on Wednesday, and NASA said he would be "helping out" with the spacewalk from there.
Tuesday was Drew's second spacewalk and marked the ordinal for Bowen.
The Discovery shuttle is the prototypal of three US shuttles ordered to become museum pieces after this year.
Endeavour is to lift soured on April 19 followed by Atlantis on June 28, rating the official modify of the US expanse shuttle information after 30 years.
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