Meet Quipu, a new contender for the largest known structure in the universe. It’s essentially a giant cluster of galaxy ...

Using the Hubble Space Telescope (HST), astronomers have observed a supermassive galactic open cluster designated Westerlund ...

Hubble captured Westerlund 1, a massive young star cluster with 50,000+ stars. This study reveals stellar motion, structure, ...

It is not surprising that there are regions that are more densely populated by galaxies, and regions that are less populated.

Blue stragglers, formed from the merger of two old red stars, shine with greater mass and a bluer hue, a theory confirmed by ...

Explore the breathtaking beauty of the cosmos with seven incredible images of star clusters and galaxies captured by NASA.

"The Hubble tension is now a Hubble crisis." The mystery of the Hubble tension has deepened with the startling finding that the Coma Cluster of galaxies is 38 million light-years closer than it should ...

Westerlund 1 is one of the closest and most massive young star-forming clusters in our galaxy, and it contains many rare supergiant and hypergiant stars, with masses ranging from eight to 100 ...

In the Ophiuchus galaxy cluster, astronomers spotted the largest explosion in the universe consisting of energy equal to a ...

About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula, the Hubble Space Telescope and ...

Astronomers studying FCC 224, an ultra-diffuse galaxy, have discovered luminous, overmassive globular clusters, providing key ...

This discovery now allows astronomers to witness the birth of a super star cluster in our neighboring galaxy. The LMC, a satellite galaxy of our own Milky Way, is located nearly 160,000 light ...