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

Zoom into the James Webb Space Telescope's view of a star-forming region in the Small Magellanic Cloud known as NGC 346.

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.

A new set of data strengthens the case that dark energy’s influence on the universe—long believed to be constant—is actually changing over cosmic time.

By using Hubble’s advanced instruments, scientists plan to map 19 nearby galaxies. They aim to identify more than 50,000 nebulae in total.

A screenshot taken of a USGS live stream at 3:22 p.m. HST shows active fountaining from the north vent of Halemaʻumaʻu crater ...

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

Astronomers using the James Webb telescope alongside Canada's CHIME telescope have pinpointed the origin of one of the ...

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