The secret behind how the International Space Station remains in orbit can be traced all the way back to the genius of Sir Isaac Newton. The International Space Station (ISS) orbits high above our ...

Astronauts Butch Wilmore and Suni Williams are conducting a spacewalk outside the International Space Station to remove ...

Americans, Russians and spacefarers from other countries have been working together aboard the International Space Station ...

Starliner co-pilot Sunita Williams is now the world's most experienced female spacewalker, moving up to number four overall.

The four American astronauts aboard the ISS, including the Boeing Starliner crew, spoke to USA TODAY in an exclusive interview Tuesday.

An HTC headset designed to work in space is offsetting the physical and psychological challenges of humans living off-world.

The ISS's orbit is slowly decaying. While it might seem a permanent fixture in the sky, the orbiting space laboratory is only ...

The plan is for the spacewalkers to collect samples from sites near life support system vents on the exterior of the ISS.

NASA astronaut Sunita Williams has successfully completed her eighth spacewalk, bringing her total extravehicular activity (EVA) time to nearly 57 hours. The six-hour EVA was conducted on January 16 ...

NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore have been on the International Space Station since June, ...

Williams joined astronaut Nick Hague in the spacewalk to remove and replace a rate gyro assembly that helps provide orientation control for the ISS ... into lower Earth orbit with a launch ...

NASA astronauts Suni Williams and Butch Wilmore were able to remove a stuck radio communications unit on a record-setting ...