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

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

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

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

NASA and SpaceX made another attempt on Friday to send a crew up to the International Space Station (ISS) and begin the ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

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

A Dragon capsule undocked from the International Space Center early Tuesday, sending NASA astronauts Suni Williams and Butch ...

NASA astronaut Don Pettit has published a surreal video and photograph of Earth that resembles the ending of Christopher ...

The astronauts will be checked out by flight surgeons as they adjust to gravity, officials said, and should be allowed to go ...

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