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

Astronomers using W. M. Keck Observatory on Maunakea, Hawaiʻi Island have found compelling evidence of a dark matter-deficient dwarf galaxy, FCC 224. This ultra-diffuse galaxy is located on the ...

The fast-moving gas cloud could help explain the so-called missing satellite problem, if the object is what scientists think ...

Dark matter is hypothesized to outweigh "ordinary matter" in the universe by a factor of five. That means all the stuff we ...

Every galaxy is thought to form at the center of a dark matter halo. Stars are formed when gravity within dark matter halos draws in gas, but astrophysicists don't know whether star-free dark ...

Learn how through a process known as molecular hydrogen cooling, stars may be able to form in dark matter halos under 10 ...

A dark matter halo with a galaxy at its heart. It's possible, however, that not all dark matter haloes could packed with stellar fillings. | Credit: Robert Lea (created with Canva) For some time ...