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 ...

Ever since Fritz Zwicky realized in 1933 that most of the matter in our universe does not interact with light, we have ...

“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 ...

NASA says that these galactic collisions unleash ... of more than just the galaxies within them. In fact, the majority of a ...

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 ...

If there are truly fewer faint galaxies than predicted this would imply a serious problem with astronomers' understanding of cosmology and dark matter. Discovering examples of these faint galaxies ...

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.

The most likely explanation is that it underwent some sort of one or more titanic collisions ... dwarf galaxies, some of which are so faint that they don't even have stars, only dark matter.

Also, when galaxies collide, the locations of dark matter effects pass straight through the collision as would the information energy of stellar heated gas and dust. In this way information energy ...