Space travel may cause changes in gene expression and other biological markers in astronauts, a Nasa study of twins has found. Photo: BloombergWashington: Space travel may cause changes in gene expression and other biological markers in astronauts, a Nasa study of twins has found. Scientists studied the genetic differences between astronaut Scott Kelly, who spent nearly a year in space, and his identical twin Mark. Since the Kelly twins are just two people, the results may not be generalisable to others, researchers said. Scott Kelly spent 340 days in space in 2015–16, giving him a lifetime total of 520 days.

Source: Mint January 28, 2017 10:05 UTC