One-Year Mission

A year on the space station has an undeniable impact across the human body, but many of the body's systems recover after a return to Earth.

A new Amazon advertisement shows twin astronaut brothers Scott Kelly and Mark Kelly accidentally causing worldwide power blips in an event nicknamed "The Incident."

What's the next frontier for retired NASA astronaut Scott Kelly, who spent nearly a year in space; and twin retired NASA astronaut Mark Kelly, who flew multiple times on the space shuttle?

Steph Curry is sorry for all the trouble his moon-landing comments have caused.

After spending nearly a year on the International Space Station during a record-breaking mission, retired astronaut Scott Kelly knows a thing or two about orbiting the Earth.

Retired NASA astronaut Scott Kelly has released a photobook, "Infinite Wonder," chronicling his 340 days on the International Space Station. Here are some selections from Kelly's time there.

As part of a new video series, retired NASA astronaut Scott Kelly got real about life in space, "Star Trek" and a creepy ball of urine.

Astronauts from today meet with Miles from Tomorrowland in the next episode of Disney Junior's "Mission Force One."

The death of renowned physicist Stephen Hawking, reported today (March 14), prompted accolades from across NASA, including from its acting administrator and many astronauts.

The changes spaceflight induces in astronauts go deeper than muscle and bone, all the way into their DNA.

Scott Kelly left a copy of "Endurance" on the International Space Station — but it wasn't his new book, of the same name, which describes his 340 days on board the space station.

Some former astronauts have a message for flat-Earther B.o.B: The curve is real, and we've seen it.

The forces of gravity and physical exertion may be key to healing broken bones, new research suggests.

Spending a year in space affected former NASA astronaut Scott Kelly's body in subtle but potentially significant ways, new research suggests.