Recent observations by the James Webb Space Telescope (JWST) have added new weight to one of the most perplexing problems in ...

Astronomers have used the James Webb Space Telescope (JWST) to revisit a misunderstood black hole thought to be gulping ...

Astronomers have stumbled upon yet another ghostly galaxy that appears to be devoid of dark matter, the elusive stuff that ...

Thirty-five years ago, the Hubble Space Telescope was launched into orbit. It's been sending back galactic data and images ...

Serving nine UC campuses and two national laboratories, Lick Observatory continues to be at the forefront of groundbreaking ...

T he Perseus cluster is enormous. It has a mass equivalent to 600 trillion Suns, and it looks like it has not stopped growing. New evidence suggests that it is undergoing a merging process with ...

The detection of dark matter, an elusive form of matter believed to account for most of the universe's mass, remains a ...

To mark the 35th anniversary of the Hubble Space Telescope, Space.com looks at some of the most scientifically significant images that have emerged from the observatory's lens.

Scientists may have finally found the universe’s missing matter - hidden in invisible hydrogen gas far beyond galaxies.

NSF–DOE Vera C. Rubin Observatory is gearing up to illuminate the universe’s darkest secrets with groundbreaking new ...

"All the odd shapes and swirling gas observed in the Perseus cluster now make sense within the context of a major merger." ...

A bold new theory suggests the universe didn’t begin with a single Big Bang, but instead unfolds through a series of ...