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

Astronaut Scott Kelly will become the first UP.SE. astronaut to spend a year in space. He will help NASA collect data on the effects of long term spaceflight on a human. He will also free up seats ...

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. (REUTERS/Maxim Zmeyev) ...

In March 2016 NASA astronaut Scott Kelly returned to Earth after a historic 340-day stint on the International Space Station a changed man – his time in orbit had altered part of his DNA.

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.

Last weekend, astronaut Scott Kelly answered questions on Twitter about life in space, including how astronauts bathe, do laundry and exercise.

Even Scott Kelly -- a NASA astronaut who just returned to Earth after 340 days on the International Space Station -- is on board with augmented reality. Kelly tested out the Microsoft HoloLens, an ...

The astronaut who spent a year in space testifies on Capitol Hill. — -- Astronaut Scott Kelly, who spent 340 days aboard the International Space Station, said that being in space appears to ...

NASA astronaut Scott Kelly, who has spent more time in space than any other American, retired from the agency on April 1, 2016. (Image credit: NASA) ...

Mark and Scott Kelly with their new mayoral medals at West Orange, N.J. town hall May 19, 2016. Mark Kelly's wife, former Congresswoman Gabrielle Giffords, is at right.

While Scott Kelly has been up in space, he has kept busy, working on NASA experiments – astronauts conduct about 200 experiments on their missions. Kelly is doing 400 experiments while he’s on ...