The universe

Scientists have long known that Saturn's largest moon, Titan, hosts rivers and seas of liquid methane. But it's strangely lacking in river deltas, a new study suggests.

Using the James Webb Space Telescope, astronomers have discovered "smoking gun" evidence of a hidden feeding supermassive black hole in a distant spiral galaxy.

NASA's Lucy spacecraft, currently journeying toward Jupiter's orbit on its asteroid-hopping mission, captured an impressive close-up of its second target: the main belt asteroid 52246 Donaldjohanson.

Astronomers discovered a planet that orbits its star so closely that its surface is being scorched into magma and vaporizing into space.

The Andromeda galaxy's family of satellite galaxies point towards the Milky Way, and nobody knows why.

A fleet of cubesats will act as a radio telescope to map the cosmic Dark Ages, its builders say.

Astronomers have observed a twinkling star and discovered an abundance of mysterious plasma structures in our cosmic neighborhood.

While it's much smaller than the largest supermassive black holes detected, it's still a whopper considering how early in the history of the universe it appeared.

The infant universe's population of huge black holes could owe itself to ultralight dark matter, scientists say.