SLN: Up to the Minute, I'm Charles Atkeison. Two of Endeavour's astronauts are in the Quest airlock right now preparing for the start of the third spacewalk of the flight.Spacewalkers Heidemarie Stefanyshyn-Piper and Steve Bowen will spend seven hours outside of the space station performing work related to the cleaning and regreasing of the right solar array rotary joint or SARJ. Piper will open four sets of covers and replace four trundle bearing assemblies, cleaning metal debris and greasing them.
At 11:15 am EST, the space walkers were dressed [left] in their suits as the station-Endeavour complex [above image at 11:09 am] flew 224 miles over the central Atlantic Ocean as Endeavour began the 122d orbit of her STS-126 mission. Both astronauts will be wearing a SAFER jet backpack while outside.++ Click on the NASA-TV link above, right column for live coverage of the entire mission of Endeavour via spacelaunchnews.com. ++
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