Pictures of black holes have a white outline around them when photographed, due to one of black holes’ unique and key features.

Several scientific projects are aiming to investigate UFO sightings.

Sound needs matter to propagate, so the vast vacuum of space is not just empty − it’s silent.

A newly discovered planet that should be too big to have formed around a tiny star is throwing into question what researchers know about planet formation.

Five of the Uranus moons might be ocean worlds − and if there’s water, there might be life.

Some dark craters on the Moon are never exposed to light − ice could be hiding in these permanently shadowed regions, and India’s Chandrayaan-3 mission marked a big step toward finding it.

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.

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

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

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