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.

Hubble’s high-resolution imagery allowed researchers to hone in on more of the Bullseye galaxy’s rings — and helped confirm ...

The Hubble Space Telescope has captured this striking image of an unusual galaxy with a bullseye structure, as nine rings ...

This image of the galaxy cluster Abell 2744 is from the Frontier Fields project, using natural gravitational lenses and ...

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

This clear image of Messier 82 (M82) shows its glowing clouds and gas plumes. Stars in this galaxy form ten times faster than in the Milky Way. This NASA/ESA Hubble image shows the edge-on disk galaxy ...

NASA released six stunning images from the Hubble Telescope showcasing interacting galaxies, including the chaotic beauty of ...

Scientists have discovered an impressive galaxy with Hubble Space Telescope that has six more rings than other previously known galaxies and an arrow-like feature straight through its heart.

New James Webb Space Telescope observations of a star cluster called NGC 346 are shedding light on how, when and where ...