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

Much of the universe's regular "baryonic" matter is spread through intergalactic space and in diffuse halos around galaxies, ...

Using NASA's Chandra X-ray space telescope, astronomers have discovered an entire galaxy cluster wrapped in a 20 million ...

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

The James Webb Telescope reveals a never-before-seen infrared image: thousands of galaxies and ancient stars expose cosmic ...

A new study used deep-space radio signals to locate the universe’s missing baryonic matter—most of it hiding in plain sight.

For years, astronomers have been working to piece together the story of our universe, but the critical early chapters ...

New research shows galaxies bursting with stars for the first time—offering rare insight into how the Milky Way began.

An international team of astronomers reports the detection of a peculiar merger of two similar ring galaxies that ...

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

Astronomers have finally tracked down missing "ordinary" matter, which they discovered hiding as gas spread out in the vast ...

An overview of the unique characteristics of the four prominent telescopes Hubble, James Webb, Euclid and Vera C. Rubin, which observe the universe from different perspectives. The article also ...