It's been more than a year now since astronaut Scott Kelly returned to earth after spending a year on the In...  ...is identical twin brother, retired astronaut Mark Kelly , are the subject of a unique twin study comparing...  ...t of a unique twin study comparing the changes in Scott...

Mark and Scott Kelly are identical twins who were both selected for NA...  ...the only siblings ever to both fly in space. Mark Kelly flew the space shuttle for ten years, then retire...  ..., then retired in order to take care of his wife. Scott Kelly spent an entire year in sp...

(Photo: NASA) Scott Kelly , an American astronaut, recently returned to Eart...  ...2 inches taller than his identical twin brother. Kelly was in very low gravity for a year, so there was...

NASA Astronaut Scott Kelly is back on earth along with with cosmonaut Mikhai...  ...ent 340 consecutive days in space on the ISS. Now Kelly will undergo tests to see how a year in space aff...  ...red to his identical twin, retired astronaut Mark Kelly . Cosmonauts Sergey Volkov...

Astronaut Scott Kelly has been on the International Space Station for n...  ...has imported an unauthorized species of wildlife! Kelly and cosmonaut Mikhail Kornienko are scheduled to...

New Zealand artist Scott Kelly is a true Star Wars fan (not to be confused with...  ...Star Wars fan (not to be confused with astronaut Scott Kelly , who is also a Star Wars fan). He created flags t...  ...kieepedia and traditional flag design principles. Kelly says, As a child...

Image: NASA Astronaut Scott Kelly took this amazing photo of an aurora from on boar...  ...More spectacular photo of the red aurora from Kelly 's Twitter account: