This gas needs an enormous amount of energy to shine — more than normal stars can supply. The discovery, based on data from ...

From spellbinding images to groundbreaking scientific discoveries, we look back on some of Hubble's most exciting milestones.

Astronomers have made a groundbreaking discovery in the Perseus galaxy cluster, located 240 million light-years from Earth.

The latest discovery marks the first-ever "compelling clue" that a black hole may be present in the enigmatic galaxy, ...

A celestial shadow known as the Circinus West molecular cloud creeps across this image captured from Chile with the ...

Astronomers confirm a wandering black hole in our galaxy’s Sagittarius region using Hubble and Gaia microlensing data.