Every galaxy is thought to form at the center of a dark matter halo. Stars are formed when gravity within dark matter halos draws in gas, but astrophysicists don't know whether star-free dark matter ...
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Mysterious space phenomenon visible in night sky could be 'early warning system' for Britons
Britons gazing skyward may spot an enchanting, luminous circle encircling the moon — a spectacle that astronomy specialists say functions as nature's own weather alert system. This captivating optical ...
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