The theory explains the violent dance of stars around the galactic center.

Previous observations of stars whipping around an unseen mass—especially a bright star called S2—have pointed to an object ...

Dark matter is a type of matter that is predicted to make up most of the matter in the universe, yet it is very difficult to ...

(CNN) — At the center of our galaxy, there’s a mysterious, diffuse glow given off by gamma rays — powerful radiation usually emitted by high-energy objects such as rapidly rotating or exploding stars.

A group of US astronomers may have uncovered the first evidence for a dark matter sub-halo lurking just beyond our stellar ...

Astronomers propose that an ultra-dense clump of exotic dark matter could be masquerading as the powerful object thought to ...

A new high-resolution map of distant galaxies may help scientists understand a mysterious invisible substance that helps hold the universe together. The ordinary matter all around us — stars, planets ...

Add Yahoo as a preferred source to see more of our stories on Google. Dark matter may have started hot and cooled during reheating after the Big Bang. (CREDIT: NASA / Goddard Space Flight Center ...

An artistic illustration of the mechanism proposed by Professor Stefano Profumo where quantum effects near the rapidly expanding cosmic horizon after the Big Bang gravitationally generate dark matter ...

NEW YORK — A new high-resolution map of distant galaxies may help scientists understand a mysterious invisible substance that helps hold the universe together. The ordinary matter all around us — ...

WIMPs (weakly interacting massive particles) are one of the most serious contenders for dark matter—the “missing” mass supposedly constituting 85% of our universe. Given its elusiveness, dark matter ...