Sunita "Suni" Williams had an unexpectedly long stay at the International Space Station after her capsule malfunctioned.

The Earth and a starry night appear to merge into one strange and otherworldly sci-fi trip in this mind-bending photo ...

NASA’s AWE mission just released millions of gravity wave images from space, unveiling atmospheric forces that ripple through ...

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

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

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

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

NASA's James Webb Space Telescope has unveiled an awe-inspiring celestial spectacle of a spiral galaxy interacting with a ...