It also returned four to five liters of recycled water made from the astronauts' urine and sweat. NASA wants to make sure the water is safe before space station astronauts start drinking it there.
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| The crew of space shuttle Discovery (L-R) Commander Lee Archambault, Pilot Tony Antonelli, Joseph Acaba, Steve Swanson, Richard Arnold and John Phillips pose in front of the orbiter after they returned to earth at the Kennedy Space Center in Cape Canaveral, Florida March 28, 2009.(Xinhua/Reuters Photo) |
