A previously unexplored globular cluster glitters with multicolored stars in this NASA Hubble Space Telescope image. Globular ...

When it comes to star formation, not all galaxies are the same. Some are quenched, meaning they've depleted their star ...

Despite decades of searching, scientists still haven’t found the elusive substance that holds galaxies together: dark matter.

The Cat’s Eye Nebula (NGC 6543), captured by the Hubble Space Telescope, resembles the eerie eye of Sauron from *The Lord of ...

This stunning image reveals a distant galaxy cluster teeming with energy: galaxies shine in visible light (white), ghostly red clouds unveil a newly discovered radio mini-halo—the most distant ever ...

Despite decades of research, scientists have yet to detect dark matter — the invisible substance that holds galaxies together and makes up 27% of the universe.

Early Spiral Galaxy Captured for the First Time Using Gravitational Lenses . For the first time ever, scientists have ...

Everything in space—from Earth and the sun to black holes—accounts for just 15% of all matter in the universe. The rest of ...

The Vera C. Rubin Observatory, which houses a telescope with the largest digital camera ever built, has revealed its first images.

Astronomers have taken an unprecedentedly detailed look at the tendrils and filaments that wrap around supermassive black hole-dominated galaxies of Abell 2255.

At left is an enlarged infrared view of galaxy cluster Abell 2744 with three young, star-forming galaxies highlighted by green diamonds. The center column shows close-ups of each galaxy, along with ...