A good chunk of cosmology is riding on whether dark matter exists or not. But what makes us so certain that dark matter is ...

A new type of self-interacting dark matter could provide solutions to three very different cosmic puzzles, new research ...

Something invisible holds the universe intact. It outweighs everything you can see—every star, every gas cloud, every ...

Galaxies are not always teeming with vibrant, hot young stars. Sometimes, they are rich in gas and dark matter but have very few or no stars, making them extremely difficult to detect. They are called ...

A potential dark galaxy — one made primarily of dark matter — may have been spotted in the local universe. Dark galaxies are theoretical, starless systems whose discovery could help astronomers better ...

In the early 1930s, Swiss astronomer Fritz Zwicky observed galaxies in space moving faster than their mass should allow, prompting him to infer the presence of some invisible scaffolding—dark ...

UC Santa Cruz physicist Stefano Profumo has put forward two imaginative but scientifically grounded theories that may help solve one of the biggest mysteries in physics: the origin of dark matter. In ...

Dark matter is an elusive type of matter that does not emit, absorb or reflect light, interacting very weakly with ordinary matter. These characteristics make it impossible to detect using ...

NASA's Hubble Space Telescope captures the magnificent starry population of the Coma Cluster of galaxies, one of the densest known galaxy collections in the universe — and where the effect of dark ...

The big-idea explorers at Aperture reveal how invisible dark matter silently shapes the cosmos and the reality we experience.

Dark matter, one of the Universe’s greatest mysteries, may have been born blazing hot instead of cold and sluggish as scientists long believed. New research shows that dark matter particles could have ...