NASA’s flagship X-ray observatory is starting the calendar with a flourish, unveiling a richly detailed view of a distant ...
An anomalous galaxy cluster, with temperatures far above what should be possible, is causing astronomers to reconsider the ...
The Champagne Cluster is a rare and beautiful example of two galaxy clusters smashing together. Its festive name comes from ...
The "Champagne Cluster," discovered on New Year's Eve 2020, is a merging galaxy cluster captured in a new image from NASA's ...
Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand individual galaxies and huge reservoirs of superheated, X-ray-emitting gas. The ...
Two massive galaxy clusters are slamming into each other, and for once astronomers are not reconstructing the crash from the ...