Astronaut Scott Kelly returns to earth after 340 days in space
Astronaut Scott Kelly has come to the end of his #YearInSpace mission and is set to return to earth.
Having spent a mammoth 340 days on board the International Space Station he is the first American astronaut to have lived in space for this amount of time, the normal duration tends to be approx. six months.
NASA are conducting an experiment on Scott Kelly and his twin brother Mark Kelly who is a retired astronaut on how weightlessness affects the human body in hopes the research will help NASA's endeavours to Mars.
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