NASA astronaut Don Pettit demonstrates zero-gravity conditions aboard the ISS.

NASA astronaut Sunita Williams returns to spacewalk after seven months, tackling repairs on the International Space Station.

The scenario in which space debris collides and creates more debris is called Kessler Syndrome, named after the NASA ...

NASA’s Artemis III mission, which was expected to return astronauts to the Moon for the first time since 1972, has been ...

An expert has warned that NASA astronauts Butch Wilmore and Suni Williams will have an awful time back on Earth if they don't stick to one thing in space ...