Aug. 21, 2007 — Dark matter detected in the midst of a galactic slam dance is acting badly, say astronomers who made the discovery using space and ground-based telescopes. Instead of hanging out with the stars, as it was found doing in another collision of galactic clusters a few months ago, it’s mingling with the dust and gases — which is unbecoming of the mysterious stuff.
"That’s weird because according to current theory, stars and dark matter should stay together," said astronomer Andisheh Mahdavi of the University of Victoria in British Columbia. "But here they didn’t."
Mahdavi and his colleagues will be publishing their discovery about the galactic cluster known as Abell 520 in the October issue of The Astrophysical Journal.
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