NASA: Genetic Changes Caused by Space Travel Are Temporary

NASA just published the full results of its extensive study into how space travel altered astronaut Scott Kelly's health and gene expression.

Twin Study For years, NASA has been analyzing the health effects of space travel by comparing astronaut twins Mark and Scott Kelly. In 2015 into 2016, Scott spent 340 days in orbit while Mark stayed on Earth, giving scientists rare data about how leaving the planet affects the human body. The study, finally published Thursday in the journal Science, reveals […]

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