NASA astronauts Suni Williams and Barry "Butch" Wilmore returned to Earth on Tuesday after spending some nine months in space ...

The 700–1,300 feet-wide space rock deformed rocks more than six miles from the impact site when it hit 600 million years ago.

NASA has shared the first images of Butch Wilmore and Suni Williams following the end of their epic nine-month space mission ...

NASA astronauts Barry Wilmore and Sunita Williams return after 9 months in space, revealing shocking physical transformations ...

NASA astronaut Don Pettit captured this stunning long-exposure view of Earth and stars from space at night from the ...

A four-member crew, including NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore, left the ISS early Tuesday on ...

Stranded NASA astronauts Sunita Williams and Butch Wilmore finally arrived home yesterday after more than nine months in ...

Dolphins surrounded the SpaceX capsule after it landed in the ocean on the NASA astronauts' successful journey home after ...

Four astronauts were all smiles Tuesday evening when they splashed down off the Florida coast on a SpaceX Dragon capsule. See ...

Satellite images taken more than three decades apart show the disappearance of Iceland's Okjökull, the first glacier to be ...

Butch Wilmore and Suni Williams left the International Space Station after nine months in space, checking out with two other ...