But four years ago, astronomers made a perplexing, and controversial discovery: two galaxies seemingly devoid of dark matter. This week the team suggests that a cosmic collision may explain how ...

In the cosmic equivalent of a total knock-out punch, two galaxies ... the collision, the gas gets stripped and shocked, and it turns into this chaotic environment with no dark matter to keep ...

Two galaxies that are curiously lacking in dark matter — the most abundant matter in the Universe — might have formed when a collision between dwarf galaxies separated ordinary matter from its ...

The fascinating saga of how an odd hypothetical particle became a star dark matter candidate. Physics is permeated by ...

“We’re seeing the entire aftermath of this collision, laid out in the sky,” van Dokkum said. “There are these new galaxies with almost no dark matter, and then there ... immune system disorders than ...

Galaxy clusters contain hundreds of galaxies and huge amounts of hot gas and dark matter and are among the largest structures in the universe. Collisions between galaxy clusters release enormous ...

Galaxies and dark matter go together like peanut butter and jelly. Rarely is one without the other, but a recently discovered galaxy called NGC 1052-DF2 is nearly entirely lacking in dark matter.

A detailed analysis of the composition and motion of more than 500 stars revealed conclusive evidence of ancient a collision between ... Astronomical Society. Galaxies grow by accreting material ...

The Milky Way Might Have a Core of Dark Matter Instead of a ... may be harbingers of an impending collision between the Milky Way and the Magellanic dwarf galaxies. Astronomers have spotted ...