Abell 2255 is a cluster containing between 300 and 500 constituent galaxies, many of which are merging. It's located around ...

The Rubin Observatory will reveal its first images on Monday. Space.com spoke to scientists who explained why this will be a ...

The Sculptor galaxy, also known as NGC 253, is similar in size, mass, and shape to our own spiral Milky Way. ESO researcher Enrico Congiu said ...

No telescope has basked in the night sky quite like this before. Here's what it could reveal about the universe.

A potential solution to the decades-long “missing matter” problem has been uncovered in astronomers' recent analysis of X-ray ...

Using the James Webb Space Telescope (JWST), astronomers have peered deep into one of the Milky Way's most radiation-intense ...

Star formation peaked during the Cosmic Noon, which spanned from 10 to 12 billion years ago. During Cosmic Noon, star ...

Gaia, Europe’s Milky Way–mapping spacecraft, shut down earlier this year. It was arguably the most important—and most ...

Just last week, for instance, the Hayden Planetarium at the American Museum of Natural History (AMNH) in New York City ...

Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, ...

CAPE CANAVERAL, Fla. — Astronomers have revealed a nearby spiral galaxy in all its brilliant glory, shining in thousands of ...

Astronomers have located a rare exoplanet on the edge of the Milky Way.