Astronomers have suggested that the dark matter halos that envelop entire galaxies may not be completely dark after all, and could contain rogue stars that have been flung out of the galaxy. The case for dark matter not being quite so dark is made by astronomers in the current issue of the journal Nature. Central […]
The invisible substance known as dark matter is thought to provide the additional gravitational force that stops galaxies from flying apart. Although astronomers don’t know what dark matter is made of, they hypothesize that it is a type of elementary particle that pervades the universe. Despite its profound effects throughout the universe, tracing and observing […]
NASA’s Hubble Space Telescope has snapped some pictures of the dusty core of two merging galaxies and uncovered a region where star formation has gone wild. The colliding galaxies appear as a single, strange looking galaxy named Arp 220 (the galaxy is the 220th object in Halton Arp’s Atlas of Peculiar Galaxies). Astronomers say the […]
