A tight clump of four star clusters sits in the Perseus galaxy cluster, and at first glance it looks like nothing special. No ...

"This data provides us with rare insight into how galaxies were transformed in the early universe." ...

Astronomers have discovered a nearly invisible galaxy called CDG-2, which blends into the cosmic background and is made up of 99% dark matter. Unlike bright galaxies like the Milky Way, CDG-2 barely ...

Study led by University of Bonn finds galaxy clusters contain about twice as much normal matter as previously estimated, based on recalculated stellar populations and survey data.

Astronomers have made a surprising discovery: a faint object nearly invisible is holding a collection of star clusters ...

Using NASA's Chandra X-ray space telescope, astronomers have discovered an entire galaxy cluster wrapped in a 20 million ...

Dark matter doesn’t emit, absorb, or reflect light. It’s invisible but supposedly makes up 85% of the universe’s mass.

But new research has found the strongest candidate yet. The first author is Dayi (David) Li, a post-doctoral fellow in ...

Astronomers have just identified what appears to be a cosmic anomaly: a faint galaxy with so few visible stars that, according to calculations, as much as 99.9 percent of its mass is dark matter. The ...

Scientists using a trio of some of the world’s most powerful observatories, the Hubble Space Telescope, ESA’s Euclid, and the Subaru Telescope, have pulled back the curtain on a ghost galaxy that is ...

Scientists discovered that galaxy clusters are about twice as heavy as previously assumed. The additional mass comes mainly from neutron stars and stellar black holes and also explains the observed ...

New X-ray imaging method maps sound waves, shocks, bubbles and cooling gas in galaxy clusters, revealing stronger black hole feedback in groups. (Nanowerk News) Galaxy clusters are the most massive ...