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

The core of a massive cluster of galaxies appears to be pumping out far more stars than it should. Now researchers at MIT and ...

A glorious, colorful image captured by a telescope in Chile shows the bright glow of star cluster RCW 38, where young stars are being born.

Read Spectroscopic data collected from NASA's James Webb Space Telescope is overlayed on an image of the Phoenix cluster that ...

Most massive galaxies have black holes at their cores that emit energetic particles, heating the galaxy’s gas and dust.

Caldwell 71, or NGC 2477, is an open star cluster. Open clusters are loosely bound collections of stars. It is located roughly 4,000 light-years from Earth in the constellation Puppis.

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

Explore the James Webb Space Telescope's incredible discovery: a cosmic alignment revealing the teenage years of our Milky ...