Tag Archives | galaxies

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Galactic Cluster Collision Sheds Light On Dark Matter

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 […]

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Stars Gone Wild

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 […]

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