Spending a year in space not only changes your outlook, it transforms your genes. Preliminary results from NASA’sTwins Studyreveal that 7% of astronaut Scott Kelly’s genes did not return to normal after hisreturn to Earthtwo years ago.
Source: ktla.com
The story begins four years ago when Schwadron and colleagues first sounded the alarm about cosmic rays. Analyzing data from the Cosmic Ray Telescope for the Effects of Radiation (CRaTER) instrument onboard NASA’s Lunar Reconnaissance Orbiter (LRO), they found that cosmic rays in the Earth-Moon system were peaking at levels never before seen in the Space Age. The worsening radiation environment, they pointed out, was a potential peril to astronauts, curtailing how long they could safely travel through space.
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