A day in the life of an astronaut in space, up close.

The four astronauts of SpaceX's Crew-11 mission will discuss their shorter-than-expected stay aboard the International Space ...

NASA astronaut Suni Williams has retired after 27 years of service and a career defined by endurance, leadership, and firsts in space. She spent 608 days in orbit, completed nine spacewalks, and twice ...

The astronauts evacuated last week from the International Space Station say a portable ultrasound machine came in “super ...

The fix to this problem might come in the form of tools instead of changes to the spacesuit itself. Rubins said astronauts ...

NASA astronaut Suni Williams, who famously stayed in space for an extended nine-month visit after problems with an ...

Indian-origin NASA astronaut Sunita Williams urged humanity to rethink conflict and embrace unity, reflecting on life on Earth from the unique perspective of space.

The U.S. is the only country to have ever sent humans to the moon.

As the four-person crew of Artemis II prepares to launch on a historic mission around the moon as soon as February, some experts are worried about the Orion spacecraft’s heat shield.

Forty years after the Challenger disaster, NPR explores the engineers' last-minute efforts to stop the launch, their decades ...

The Artemis 2 astronauts who will become the first humans in more than 40 years to fly on a lunar mission are in quarantine.