Using NASA's Chandra X-ray space telescope, astronomers have discovered that a galaxy cluster is wrapped in an envelope of ...

Astronomers have smashed the record for the largest-known cloud of energetic particles discovered surrounding a galactic cluster—and the find could shake up established physics. The cluster in ...

The discovery, made with the LOFAR (LOw Frequency ARray) radio instrument in Europe, indicates that galaxy clusters, which ...

After starting with over 250,000,000 candidate objects, we've now announced the discovery of galaxy cluster MOO J1142+1527, the largest, most massive distant galaxy cluster ever discovered. Image ...

For years, scientists have worked to chart the universe’s massive structure, aiming to test key models of cosmology. These ...

The Coma Cluster’s biggest, NGC 4889, spans 1,300,000 light-years in diameter. The two bright, ... The giant galaxy cluster, Abell 2029, houses galaxy IC 1101 at its core.

This X-ray galaxy cluster is the largest, hottest and brightest discovered, according to NASA's press release from Tuesday. The galaxy cluster is bound together by gravity, ...

Hubble telescope has just produced this brain-expanding image of Galaxy Cluster Abell 1689, a dense thicket of galaxies and globular clusters 2.25 billion light years away. It’s also a region of ...

(PhysOrg.com) -- An exceptional galaxy cluster, the largest seen in the distant universe, has been found using NASA's Chandra X-ray Observatory and the National Science Foundation-funded Atacama ...

SURREY, England — Scientists may have finally solved a decades-old mystery behind why the stars in the Omega Centauri, the largest star cluster in the Milky Way, move so unusually fast. Turns ...

According to NASA, galaxy clusters are the largest structures in the universe, held together by gravity and containing thousands of galaxies, dark matter and hot gas.