A new 527-megapixel image captures two open star clusters, NGC 456 and NGC 460, orbiting our Milky Way galaxy. The image uses ...

Astronomers have discovered a new kind of star system: Elongated and clumpy clusters of young, hot, blue stars, formed out of gas blown out of a galaxy as it rams its way through a galaxy cluster.

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Hubble captures forgotten globular cluster ESO 591-12 in rare detail ESO 591-12 sparkles with red and blue stars of varying ...

A brilliant blue star cluster shines brightly about 1,500 light-years from Earth in this new photo released by the European Southern Observatory.

This week's Hubble image is, appropriately enough, a star cluster called NGC 330 which glitters in shades of red, white, and blue.

Blue stragglers sink toward the center of a star cluster over time. (Image credit: ESA/Hubble/NASA/L. Calçada) These stragglers revealed something interesting about how star clusters evolve , the ...

Just like people, huge star clusters age at variable rates depending on their lifestyles, a new study reports. While such star clusters are many billions of years old, some of them manage to stay ...

One image with blue nebulosity includes near-infrared light as well as visible light, ... This Hubble image shows the star cluster NGC 1850, located about 160,000 light-years away.

As the cluster ages, the massive, blue stars run out of fuel first. When a star dies, it stops fusing hydrogen and begins fusing helium. Because this happens at a much higher temperature, the star ...

Nearby star cluster houses unusually large black hole ... Its spectrographs could also potentially pick up the red and blue shifts in light caused by the star's motion.