The universe is expanding faster than physicists would expect. To figure out what processes underlie this fast expansion rate, some researchers are first trying to rule out what processes can’t.

When you’re an astronaut landing on the Moon, you can’t rely on the same gravitational cues we have on Earth. But regimented training with sensory devices could one day prevent spatial disorientation.

Despite the distances involved, people as far apart as the UK and Australia can see the Moon at the same time.

Space junk and carbon emissions are just some of the problems with a boom in space travel.

Upcoming NASA missions will help scientists understand the composition of asteroids – which could inform companies one day hoping to commercially mine asteroids.

Scientists have been searching Earth’s surface for superheavy elements too difficult to make in the lab, but now, many are looking to the skies instead.

A more active Sun could disable satellites and affect electrical grids on Earth.

Some space rocks you can get for free – if you know how to identify them. Rarer materials cost more, and the asteroid sample NASA just brought back has a high price tag.

The meteor shower happens when Earth passes through debris from Halley’s comet.

The atmosphere is a reflection of extreme conditions on the super-heated planet.