Astronaut Scott Kelly returned from a year-long sojourn in space in June. His slightly older astronaut twin, Mark Kelly, stayed home as a control—part of NASA’s twin study to monitor the ...

Mark Kelly’s identical twin brother, Scott Kelly, was inducted into the Astronaut Hall of Fame in 2020. The Kelly brothers were part of the same NASA class in 1996.

Astronaut Mark Kelly and his twin brother will help NASA study the effects of spaceflight on the human body. NASA announced Friday that Mark Kelly and astronaut Scott Kelly will participate in 10 ...

Astronaut Scott Kelly, after 340 days in space, returned to Earth Tuesday, and twin, Mark, was ecstatic. "My brother is back home! Talk about aliens. He's been off the planet for a year," joked Mark.

Astronauts Mark Kelly, right, STS-124 commander, and Scott Kelly are pictured in the check-out facility at Ellington Field near NASA's Johnson Space Center in Houston. Phoenix: Astronaut twins ...

Mark Kelly added his input yesterday (March 15) while linking to a CNN article. "I used to have an identical twin brother. Then this happened," he joked. After he tweeted, the CNN article was updated.

Retired astronaut Mark Kelly writes about his twin brother Scott's launch for a year-long stay aboard the International Space Station: He's off the planet — and on his way to the International ...

PHOENIX — Astronaut Mark Kelly and his twin brother will help NASA study the effects of spaceflight on the human body. NASA announced Friday that Mark Kelly and astronaut Scott Kelly will ...

Astronaut Mark Kelly and his twin brother will help NASA study the effects of spaceflight on the human body. Skip to content. America's Newspaper. 1. Subscribe. My Times. Sign In ...