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How Scott Kelly’s year in space changed his poop
The much-anticipated NASA Twins Study was released Thursday, more than three years since astronaut Scott Kelly returned from the International Space Station.
Watch 22:24
November 25, 2018 – PBS NewsHour Weekend full episode
On this edition, for Sunday, Nov. 25, asylum seekers are facing unknown policies at the U.S. southern border and how those displaced by Hurricane Michael in Florida spent Thanksgiving. Later, an astronaut documented almost a year on the International Space…
Watch 7:20
Can humans cope with long space travel? Astronaut Scott Kelly spent a year as a guinea pig
A year in space isn’t for the faint of heart. Retired NASA astronaut Scott Kelly, author of a new book, “Endurance,” sits down with science correspondent Miles O’Brien to discuss the physical effects of a long space mission and what…
NASA Twins Study spots thousands of genes toggling on and off in Scott Kelly
When astronaut Scott Kelly returned to Earth after a year floating about the International Space Station, he was noticeably different from his identical twin, Mark Kelly.
The first results from NASA’s Year in Space brothers are in, and show glimpses of how stressful a trip to Mars could be for the human body.
At 2 p.m. EST today, astronaut Scott Kelly will be live from NASA’s Johnson Space Center in Houston, where he will share his personal perspective on his 340-day mission in space.
Astronaut Scott Kelly spent 340 days -- the longest an American has ever been in space -- on the International Space Station before descending into Kazakhstan by capsule Tuesday evening. Kelly’s extraterrestrial sojourn was part of a study on the…
Watch this supercut of Scott Kelly's best pictures and videos, and hear what he had to say about his year in space before departing.
PBS NewsHour will live stream astronaut Scott Kelly as he returns to Earth after 340 days in space.
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