One of the most famous and beautiful cosmic sights shows its colors in this new image from the Hubble Space Telescope. The Veil Nebula is the remnant of a massive star which exploded in a supernova 10 ...

As part of ESA/Hubble's 35th anniversary celebrations, the European Space Agency (ESA) shared new images that revisited ...

Famed for its unbelievable size — containing the mass of some 600 trillion suns — it also has a reputation for being one of the few "relaxed" galaxy clusters out there: it shows no signs of ...

The team behind this discovery speculates that this gas could eventually become the hot, diffuse gas called the intracluster medium (ICM) that has been seen filling mature galaxy clusters.

For Hubble’s 35th anniversary, ESA has unveiled breathtaking new images of the star cluster Messier 72, a celestial gem ...

Astronomers have discovered a long-missing element of a galactic collision involving the Perseus galaxy cluster, located 240 million light-years from Earth. This element, a newly detected ...

NGC 346 is home to a cluster of more than 2,500 ... reveals richest view of Andromeda galaxy to date (image) — Hubble Telescope spies newborn stars in famous Orion Nebula (photo) — NASA ...

The Perseus cluster is a vast swirl of thousands of galaxies, all bound together by gravity. Famed for its unbelievable size — containing the mass of some 600 trillion suns — it also has a reputation ...