How do you distinguish a galaxy from a mere cluster of stars? That’s easy, right? A galaxy is a large collection of millions ...

"No existing galaxy formation model within our standard cosmological paradigm can currently explain how this galaxy came to ...

Astronomers have identified a new ultra-diffuse galaxy that appears to defy one of the fundamental assumptions of modern cosmology: the presence of dark matter. The galaxy, dubbed FCC 224, lies at the ...

A diagram showing light from a distant galaxy being lensing by a dark matter halo coming between it and Earth. | Credit: ...

An international team of astronomers has discovered a new ghost galaxy, that does not contain dark matter.

Astronomers have discovered a rare kind of galaxy that seems to be missing one of the universe’s most important ingredients: ...

Famed for its unbelievable size — containing the mass of some 600 trillion suns — it also has a reputation for being one of the few "relaxed" galaxy ... major merger." Dark matter is the ...

Mysterious Phenomenon at Center of Galaxy Could Reveal New Kind of Dark Matter Mar. 10, 2025 — A mysterious phenomenon at the center of our galaxy could be the result of a different type of dark ...

T he Perseus cluster is enormous. It has a mass equivalent to 600 trillion Suns, and it looks like it has not stopped growing ...

A team of astronomers and astrophysicists at the Chinese Academy of Science's National Astronomical Observatories has found ...

Astronomers at the Indian Institute of Astrophysics (IIA) have found the reason for the strange deficiency of dark matter in ...

First spotted in 2024, FCC 224 is a dwarf galaxy that boasts a dozen luminous, tightly bound clusters of stars — an unusually rich population for its size, typically seen in larger, dark-matter ...