NASA Twins Study Shows Impact Of Time Spent In Space Written 12 April 2019

The New York Times reports that researchers have published the results of the NASA Twins Study, which found both temporary and permanent changes to astronaut Scott Kelly’s biological makeup and genetic mutations. Researchers studied the impact of time spent in space by comparing astronaut Scott Kelly, who spent 340 days in space on the ISS, with his identical twin brother, Mark Kelly.
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