copy code snippet Scott Kelly No Longer Has Same DNA as Twin After Space Stint ~ News K99
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Scott Kelly No Longer Has Same DNA as Twin After Space Stint



After a yearlong mission in outer space, Scott Kelly came back a changed man — genetically, "Today" reported.A NASA study found that the 54-year-old no longer shares the exact same DNA as his identical...

Photo Credit: AP Photo/Pat Sullivan, File

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