SpaceX's Inspiration4 astronauts got genetically younger in space: study

"We are getting closer to the point where we can almost measure the dose of space on the body." The crew of the SpaceX Inspiration4 all-civilian spaceflight conducts biological research during their flight.(Image credit: SpaceX/Inspiration4) The four crew members of Inspiration4, the first ever all-civilian space mission, got genetically younger during their stay in space, a study has found. But the effects didn't last long. Scientists are now trying to unravel how the space environment affects human DNA. Inspiration4 crew …