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Signs of dark matter in space confounding scientists

Josh Peterson Contributor
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A lonely clump of dark matter 2.4 billion light-years from Earth is confounding scientists by its mere presence, researchers say. Contrary to popular astronomy theories, the invisible stuff appears to have been left behind in space after a cluster of galaxies collided.

While the fundamental nature of invisible dark matter remains mysterious, scientists think they have a pretty good idea of how it behaves. For one thing, most galaxies are thought to reside inside larger masses of dark matter, and the two are thought to stay attached, even after cosmic collisions.

Full Story: Strange Lump of Dark Matter Shouldn’t Exist, But Does