Why SpaceX, Rocket Lab, Arianespace made Fast Company's list of the most innovative companies doing work in space.

NASA’s Butch Wilmore and Suni Williams, whose weeklong Boeing Starliner mission turned into an extended stay in space, have ...

D printers will make the tools, structures, and habitats space pioneers need to survive in a hostile alien environment.

Astronomy contributor and lunar expert Robert Reeves looks back on a Texas-sized achievement in Moon exploration.

Scientists found that some slopes on the Moon stay cold enough to hold ice. This could expand water sources for future space ...

In the next decade, space agencies plan to bring rock samples from Mars to Earth. But what if these rocks contain alien ...

The Blue Ghost spacecraft, named for a species of firefly, took eclipse chasing to new heights. Not only did it see the Earth block the Sun from an unexplored location on the Moon, but the lander fell ...

With Sunita Williams and Butch Wilmore set to return to Earth after nearly nine months in space, let's look at how the astronauts' return takes place ...

Just four years after the first human traveled to space, a Soviet cosmonaut and later an American astronaut took next steps that would be vital to exploration: They walked in space. A spacewalk, when ...