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

Mark and Scott Kelly, brothers was are both veterans of four spaceflights, join CBS Mornings to discuss today's SpaceX ...

— Astronaut Scott Kelly on advising Apple's new space thriller 'Constellation' One of its first activities in April included the distribution of mission patches to help kids feel confident when ...

FROM roiling storms, rare comets and volcanic eruptions, there is lots to see aboard the International Space Station (ISS).

Growing plants in space is no longer a distant dream. Scientists and astronauts have been experimenting with growing plants ...

Captain Scott Kelly held up two tiles from the 2007 Endeavor shuttle to Cornellians, a souvenir from his decades-long career in space that highlighted the lessons he learned aboard. The tiles ...

As work on President Donald Trump‘s Space Force gets underway, a retired American astronaut with more time clocked in space than any other human called the idea totally unnecessary. Scott Kelly ...

Former NASA astronaut Scott Kelly, who spent 520 cumulative days in space, will have aged more slowly, according to this theory, compared with his brother, Mark Kelly, who remained on Earth for ...

-- Astronaut Scott Kelly retired today after 20 years with NASA and spending a year in space. During his career, Kelly completed four separate missions in 1999, 2007, 2010 and 2015, accruing 520 ...

In fact, when Kelly landed back on Earth in 2016, he was actually two inches taller, but then, as gravity took hold, his height, along with most of the other physical changes, did eventually go ...

Astronaut Scott Kelly has made it through seven months of his year-long stay on the International Space Station, and it looks like the sheer isolation of living in space — the vast ...