We have been sending both animals and humans alike into space for decades to help us discover and understand more about the fascinating solar system that surrounds us. But scientists want to learn ...

he will leave behind a copy of himself—his identical twin brother, Mark Kelly, a retired astronaut. Because the Kellys have virtually the same genetic material, NASA can study how long-duration ...

Dr. Mason was a principal investigator for NASA’s Twins Study, which studied how astronaut Scott Kelly’s body was impacted by his historic 12-month spaceflight in 2016. Kelly was studied ...

That’s his twin brother, Mark, an astronaut who stayed on Earth while his brother was circling our planet. The early conclusions of a recent NASA study implied that Scott’s DNA has been ...

That’s the takeaway from a long-term NASA study that used astronaut Scott Kelly and his twin brother Mark as guinea pigs to see how living in space can affect the most basic building blocks of life.

For the twins' study, NASA compared retired astronaut ... landed and persisted for six-months," NASA's findings about the cognitive health of astronauts say. READ ALSO: Anti aging influencer ...

Scott Kelly and Mark Kelly are American astronauts and identical twin brothers. They participated in NASA's Twins Study, conducted between 2015 and 2018. Scott Kelly appeared on Fox News with ...

A study that compared data during and after astronaut Scott Kelly’s mission to space against data from his identical twin brother, retired astronaut Mark Kelly, found that there were chemical ...