This claim was, in fact, true. McCandless was, indeed, the first astronaut to perform an untethered spacewalk on Feb. 7, 1984 ...

There is only one way to experience lunar gravity while still on Earth, or rather a few thousand feet above its surface: on a ...

An curved arrow pointing right. NASA sent an astronaut for a walk in space with a GoPro. Here's what he's facing 200 miles above Earth. Produced by Kevin Reilly. Video courtesy of NASA.

A new study shows that the brain fog many astronauts report feeling when they're in space is not just all in their head. The ...

In microgravity, astronauts must measure their mass, not their weight, which they can do with two devices on the ISS.

The crew showed a container of food which they said had smoked turkey, Brussels sprouts, and butternut squash.

Sarah Gillis recently returned from a Space-X mission and spent Wednesday with students at her old school in Boulder.

Leaks are affecting a key part of the International Space Station. NASA and Russia’s space agency, Roscosmos, are not seeing ...