Featured in scott kelly
What NASA’s twin study actually taught us about living in space
Results show the human body changes, but not dramatically.
What can NASA’s twin study results actually tell us?
Not much can be said yet of the differences between the identical twins’ genetic makeup
Astronaut Twins Tease Each Other About Dead Space Flower
Mark Kelly mocks Scott Kelly over space gardening abilities
The Dragon Returns
SpaceX's Dragon splashes down from space with 3,700 lbs of stuff
Scott Kelly Is Back On Earth, But His Instagram Is Still Epic
See the world anew, through the eyes of a long-term space traveler
A Chimp Selfie, Ghostly Octopus, And The Biggest Photo Of Manhattan Ever
Plus, twin red panda cubs
Pictures From Yesterday’s Successful Space Landing
The end of a year in space
Here’s Why Twin Studies Are So Important To Science And NASA
Mark and Scott Kelly are giving scientists a unique look at what space does to the human body
What’s Next For Astronaut Scott Kelly?
He spent a year in space, but the fun's not over yet
Watch Astronaut Scott Kelly Return Home After A Year In Space
Coverage begins Tuesday at 4:15 PM Eastern