Astronomers have discovered a vast, dense cluster of massive galaxies just 1 billion years after the Big Bang, each forming ...

New Hubble observations explain how blue straggler stars form, showing that binary systems in low-density clusters play a key role ...

A monstrous galaxy named Inkathazo with plasma jets 32 times larger than the Milky Way has been discovered, challenging ...

How could the Universe form such dense and extremely hot structures only 1.4 billion years after the Big Bang? This question ...

New research may have delivered bad news for scientists who thought they had discovered a "missing link" black hole in a dense Milky Way star cluster. "The hunt for elusive intermediate-mass black ...

Researchers at the University of British Columbia and Dalhousie University have found a young galaxy cluster that appears far ...

A new simulation could help solve one of astronomy’s longstanding mysteries—how supermassive black holes formed so rapidly—along with a new one: What are the James Webb Space Telescope’s (JWST) ...

binary stars, including a large number of rapidly rotating neutron stars. The discovery may help explain how one of the oldest structures in our Galaxy evolved over its lifetime. By combining Chandra, ...