Mark and Scott Kelly, twin brothers and former NASA astronauts, spoke to "CBS Mornings" about how the agency is set to lose ...

NASA astronaut Scott Kelly (R), member of the 43 International Space Station crew, and his twin brother Mark pose after a news conference at Baikonur cosmodrome March 26, 2015.

Former NASA astronaut Scott Kelly knows a thing or two about isolation. In 2016, Kelly became the first American to spend 12 consecutive months in space when he completed a 340-day stint on the ...

Astronaut Scott Kelly and cosmonaut Mikhail Kornienko ended a record-setting 340-day stay in orbit with a fiery Super Tuesday plunge to Earth, settling in a jarring rocket-assisted touchdown on ...

Kelly, 56 was always the little kid’s heroic vision of an astronaut: brave, stoic, and strong. He could withstand anything, and did—including 340 consecutive days in space, the American record.

If NASA had allowed it, astronaut Scott Kelly would have loved to climb out of the Soyuz capsule after landing on Tuesday and walked on his own, Kelly’s brother, Mark, said during a news ...

Kelly knows that duty on the space station can mean fixing the toilet one week and being out on a spacewalk the next week. Scott, 51, and his twin brother, retired astronaut Mark, will both be ...

In a few hours, NASA astronaut Scott Kelly is due to be back on Earth. Kelly has completed a nearly yearlong mission on the International Space Station, the longest any U.S. astronaut has been in ...

Astronaut Scott Kelly said today he's excited to return to Earth to see his family but added he has enough stamina to "go another year" living in space.

At a young age, Scott Kelly dreamed of being a test pilot and then an astronaut rocketing into space. He did it and apparently liked it so much up there, he never wanted to come home.

Scott’s twin Mark Kelly, who retired from the astronaut corps in 2011 and kept his feet firmly planted on the ground during his brother’s latest flight, is also undergoing many of the same tests.