The discovery of CDG-2 began when a team of astronomers investigated tight groupings of stars called globular clusters, which can often indicate the presence of a hidden population of dim stars in ...

Astronomers have detected a ghostly galaxy that is almost completely made of dark matter. The faint object was revealed by just four globular star clusters hiding in the Perseus cluster.

The first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of ...

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 ...

Astronomers working with NASA’s James Webb Space Telescope have produced the sharpest wide-area map of dark matter ever ...

A galaxy made almost entirely of dark matter was sitting 300 million light-years away, unnoticed until astronomers applied a detection technique never before used for galaxy discovery. The find could ...

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 ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

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 ...

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 ...

Researchers may have identified what could be a compelling clue in the ongoing hunt to prove the existence of dark matter. A mysterious diffuse glow of gamma rays near the center of the Milky Way has ...

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 ...