The discovery expands Uranus’s known family of satellites to 29, with the tiny moon measuring just 6 miles across.

Galaxy merger Arp-Madore 417-391 is on display in this new image captured by the Hubble Space Telescope's Advanced Camera for ...

Astrophysicist Edwin Hubble was offered a staff position at the Mount Wilson Observatory in 1919 by the founder and director ...

A rare black moon will happen tonight Aug. 22-23. Don't worry too much if you miss it, although it won't happen again for ...

A Harvard scientist has suggested that an interstellar object passing through the solar system might be a nuclear-powered alien spaceship. Most astronomers believe the object, dubbed 3I/ATLAS, […] ...

Our Milky Way is one of more than 100 galaxies bound together by gravity.

NASA says its Perseverance rover on Mars has transmitted new imagery that forms one of the sharpest panoramas of the Martian ...

Two more space rocks are expected to do a flyby of Earth over the weekend. On August 23, a plane-sized asteroid known as 2025 ...

Two colliding galaxies have been found to be reorganizing their dwarf satellites, potentially solving a major conundrum ...

It’s worth noting that stars didn’t even start showing up until about 300 million years after the Big Bang. So, whether ...

Astronomers using the James Webb Space Telescope have found an unknown moon orbiting Uranus, bringing the planet’s total to 29 — and more likely remain undiscovered.

A collaboration involving a Rutgers University-New Brunswick cosmologist, along with hundreds of other researchers and dozens ...