The Champagne Cluster is a rare and beautiful example of two galaxy clusters smashing together. Its festive name comes from ...

It's another step on the road to one day discovering what dark matter could be. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA's James Webb ...

Examples of merging galaxies containing a heavily obscured growing supermassive black hole observed by the Hubble Space Telescope. The top panels show nearby galaxies at ~500 million light-years from ...