The distinct spatial distributions of open and globular star clusters in spiral galaxies are a consequence of the interplay between gravity and conserved angular momentum, which facilitates the ...
The largest structures in the universe are galaxy clusters—groups of galaxies held together by gravity. Their developmental ...
Galaxy clusters are formed by a dense packing of many galaxies, making them the most massive structures in the universe.
Astronomers have explained how a galaxy cluster maintains its heat, despite emitting X-rays that cool the hot gas at its center. The group discovered the existence of a fast-moving, high-temperature ...