NASA astronaut Scott Kelly is returning to Earth today, after spending nearly a year aboard the International Space Station. The idea behind his extended stay is .
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Expedition 46 NASA astronaut Scott Kelly will hand over space station command to Expedition 47 NASA astronaut Tim Kopra on February 29. Undocking LIVE .

Thirty research studies have been approved for the one-year International Space Station mission, currently underway by NASA astronaut Scott Kelly and .