Every galaxy is thought to form at the center of a dark matter halo—a region of gravitationally ... done using analytic predictions from galaxy formation theory and cosmological simulations.

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

the more likely it is to experience slowed or halted star formation due to the gravitational pull and influence of the host galaxy’s dark matter halo. “Our results suggest that lower-mass ...

The halo is more extended that astronomers originally thought, and contains enough hydrogen gas to resolve the problem of the universe's missing baryonic mass. NASA/CXC/M.Weiss; NASA/CXC/Ohio State/A ...

The XRISM science team, including members from Nagoya University in Japan, has explained how a galaxy cluster maintains its heat, despite emitting X-rays that cool the hot gas at its center. The group ...

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

The study suggests the galaxy possesses a 'cored' dark matter halo, unlike earlier 'cuspy ... potentially aligning NGC 1052-DF2 with standard galaxy formation theories. Image of ultra diffuse ...