Jonny Kim—a former Navy SEAL and ER doctor—is now a NASA astronaut who will soon launch to the International Space Station as ...

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

New photos of astronauts stuck on the international space station without being able to return home has led to health ...

Shared on social media on Thursday, the image (top) shows Earth as a blaze of streaking light, an effect created by using a ...

The astronauts remained tight-lipped about the nature of the medical issue that had left an as-yet-undisclosed crew member ...

A SpaceX Dragon capsule looks a little ghostly in a new image taken from the space station. NASA astronaut Don Pettit snapped ...

NASA astronaut Matthew Dominick has answered the burning question of what squeezing a bottle of ketchup looks like in space.

I wonder what it looks like from way up there ... said during an Aug. 7 press briefing. The Starliner astronauts were serving as "extra hands" working aboard the ISS while they were up there ...

looks a lot like the spacesuits worn by astronauts who first visited the Moon decades ago, and even more similar to the suits worn by ISS astronauts during spacewalks. NASA explains that while it ...

The more scientists study the Red Planet, the more they find unusual objects and patterns scattered across Mars' surface. Here are some of the most baffling.

Sierra Space plans to launch a trash compactor to the space station in two years — and some media outlets say the machine looks like Wall-E ... aid Artemis moon astronauts gets a test on ...

That’s because the NASA astronaut is ... that Milton looked like the catastrophic superstorm in the 2004 disaster flick “The Day After Tomorrow.” “Milton looks massive.