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Spacewalks Scheduled For Weekend, Christmas

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US astronaut Rick Mastracchio smiles during space suit test prior to blast off to the International Space Station (ISS) from the Russian-leased Baikonur cosmodrome in Kazakhstan early on November 7, 2013. Russia on November 7 launched into space a trio of Russian, Japanese and US astronauts carrying an unlit Olympic torch that will for the first time be taken on a spacewalk to mark the 2014 Winter Games in Sochi.  The Soyuz-FG rocket and Soyuz-TMA capsule, emblazoned with the symbols of the Sochi Games and the Olympic rings, blasted off for the International Space Station (ISS) from Baikonur.    AFP PHOTO/ POOL / SHAMIL ZHUMATOV        (Photo credit should read SHAMIL ZHUMATOV/AFP/Getty Images)

US astronaut Rick Mastracchio smiles during space suit test prior to blast off to the International Space Station (ISS) from the Russian-leased Baikonur cosmodrome in Kazakhstan early on November 7, 2013. Russia on November 7 launched into space a trio of Russian, Japanese and US astronauts carrying an unlit Olympic torch that will for the first time be taken on a spacewalk to mark the 2014 Winter Games in Sochi. The Soyuz-FG rocket and Soyuz-TMA capsule, emblazoned with the symbols of the Sochi Games and the Olympic rings, blasted off for the International Space Station (ISS) from Baikonur. AFP PHOTO/ POOL / SHAMIL ZHUMATOV (Photo credit should read SHAMIL ZHUMATOV/AFP/Getty Images)

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End Of An Era

MIAMI (CBSMiami) – NASA will send two Expedition 38 astronauts on spacewalks over the weekend and on Christmas Day.

The walks will take place December 21, 23 and 25.  The astronauts will remove a pump module that has a failed flow valve.

According to NASA, astronauts Rick Mastracchio and Mike Hopkins will conduct the walks outside the International Space Station.

The spacewalks will begin at 7:10 a.m. each morning and will last about six hours.

NASA says the pump to be removed is associated with one of the station’s two external cooling loops.  They circulate ammonia outside the station to assist with keeping the internal and external equipment cool.

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