The discovery of CDG-2 began when a team of astronomers investigated tight groupings of stars called globular clusters, which ...

A galaxy made almost entirely of dark matter, an elusive form of matter that doesn’t interact with light, was spotted by Hubble 250 million light-years from Earth.

NASA said CDG-2 “may be among the most heavily dark matter-dominated galaxies ever discovered” ...

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.

Astronomers working with NASA’s James Webb Space Telescope have produced the sharpest wide-area map of dark matter ever assembled, more than doubling the resolution of previous efforts built on Hubble ...

Astronomers working with the Hubble Space Telescope have identified a nearly invisible galaxy in the Perseus Cluster that appears to consist almost entirely of dark matter. Designated Candidate Dark ...

Astronomers have analyzed the images collected by the Hubble Space Telescope (HST) to investigate a galactic open cluster ...

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 ...

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