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        r(sh)g2021-01-07 11:04:31 иԇ ҪͶ

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        astronauts take out the trash

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        astronauts on sunday exchanged supplies for trash that has accumulated on the international space station since shuttles were grounded after the 2003 columbia tragedy they also prepared for a second spacewalk set for monday

        space shuttle discovery which docked at the orbiting outpost thursday became the first shuttle to return to orbit last week among the missions goals resupply the station and remove the mounds of trash that have accumulated in recent years

        it is kind of just like working in your closets and your garage station flight director mark ferring said its a lot of work

        the astronauts are unloading 15 tons of cargo they expect to return to earth with 13 tons of trash and other items that are no longer needed on the station

        when the stations twoman crew awoke sunday they were told that their seven discovery guests would remain at the station for an additional day

        hopefully it is not going to be like the relatives who miss their flight and have to stay another day charles hobaugh who works in the stations mission control told crew members by radio

        a ninth day at the station was approved late saturday days after nasa decided to ground future shuttle missions because an almost onepound piece of foam broke free of discoverys external fuel tank the piece of foam missed discovery but was a haunting reminder of columbia

        a 167 pound chunk of foam shed from columbias external tank hit the shuttles left wing and caused a hole that allowed the searing gases of reentry to melt the wing from the inside out the shuttle disintegrated over texas as it returned to florida all seven astronauts died

        nasa spent hundreds of millions of dollars over 2 years redesigning the external tank but said last week it did not solve the problem and more work is needed

        bill gerstenmaier the stations program manager said discovery will leave the station in much better shape than when it arrived water will be left behind as well as laptops wash cloths a printer dry wipes floppy disks food and nitrogen

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