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 ...

Avi Loeb said bases this hypothesis on a July 21 image captured by the Hubble Space Telescope and shared by NASA.

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

The observatory's powerful ultraviolet tools discovered in the star's atmosphere an even higher surge of carbon than ...

NASA’s James Webb Space Telescope discovered a tiny new moon, S/2025 U1, orbiting Uranus, raising its moon count to 29.

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 ...