Launched on Aug. 12, 2018, the probe is the fastest human-made object in existence. It used flybys of Venus to adjust its ...

Pictures from the International Space Station do not disappoint, from comets and northern lights to giant hurricanes and ...

Like countless other children around the world, Jerry Firlan was starstruck on 1968. It was not because he caught Santa Claus ...

When Butch Wilmore and Suni Williams launched to the space station in June, they expected to stay for just eight days. But ...

NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore have reached their six-month milestone of being stranded on ...

Suni Williams and Butch Wilmore, the two astronauts stranded in space since June, are preparing to spend Christmas in space, ...

Chinsese astronauts are conducting experiments with fruit flies and more aboard the Tiangong space station. Credit: China ...

The astronauts on the I.S.S. — including two who were scheduled to return months ago — held a zero-gravity cookie-decorating ...

Learn how NASA astronauts Suni Williams and Butch Wilmore got stuck on the International Space Station, and why their return ...

The astronauts — including two whose return is long overdue — held a zero-gravity cookie-decorating contest and built a ...

Space station crews spend the holidays away from family and friends, but that doesn’t stop them from celebrating in space.

When the astronauts stranded at the International Space Station were pictured wearing Santa hats next to a tiny Christmas ...