#NASA twins study shows space travel changes body at genetic level
A #NASA study of twin brothers has offered new insights into the stress of space travel on the body — including genetic differences between #ScottKelly, the twin who spent nearly a year in space, and his brother Mark, who stayed on #Earth.
Read more at: http://www.cbc.ca/news/canada/twins-genetic-differences-scott-kelly-nasa-space-travel-1.3958690