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Showing posts with label sheds light. Show all posts
Showing posts with label sheds light. Show all posts

Tuesday, January 1, 2013

The first direct detection sheds light on dark galaxies


Most people think of the giant galaxies as islands of stars, gas and dust that block our universe with its light. Theory, however, predicts that there are other types of galaxies, devoid of stars, and consisting mainly of dense gas. These "dark" galaxies you can not see on the black background of the universe.

Now an international team of astronomers has found a few bright galaxies, watching the glow of hydrogen these galaxies, UV-induced nearby quasar HE0109-3518.