No theory could explain the slight excess of far-ultraviolet light in the Milky Way until now.

Out of all the matter in the universe, only 4% of the universe’s mass is currently understood — leaving 96% to be further ...

A dwarf galaxy in the NGC 1052 group is being reported as a third candidate in the region that appears to contain little or no dark matter, based on new spectroscopic analysis of data from the W. M.

Dark matter doesn’t emit, absorb, or reflect light. It’s invisible but supposedly makes up 85% of the universe’s mass. Because it’s so abundant, astronomers believe it should explain many unsolved ...

Add Yahoo as a preferred source to see more of our stories on Google. A dark matter galaxy behaves very differently than a conventional one. (Credit: NASA) A galaxy made of 99.94% to 99.98% dark ...

A tight clump of four star clusters sits in the Perseus galaxy cluster, and at first glance it looks like nothing special. No bright spiral arms. No obvious central bulge. Not even the soft smudge you ...

(CNN) — Astronomers have spotted a galaxy so faint, it’s almost invisible — a discovery that could help illuminate one of the most elusive substances in the universe. The researchers found Candidate ...

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. NASA’s ...

(CNN) — Astronomers have spotted a galaxy so faint, it’s almost invisible — a discovery that could help illuminate one of the most elusive substances in the universe. The researchers found Candidate ...

A tiny object half a universe away, a scar in a stream of stars circling the Milky Way, and an unusual star cluster in a ...

A galaxy so faint it escaped detection for as long as anyone has been scanning the sky has finally been found. Called CDG-2, this newly identified “ghostly” galaxy may be one of the most dark ...

A galaxy made of 99.94% to 99.98% dark matter immediately challenges and updates models for how dark matter works. It also sheds light on how the universe arrived at the large-scale distribution of ...