https://www.livescience.com/2-pairs-of-gigantic-runaway-black-holes-spotted-on-collision-course-and-theyre-bringing-four-entire-galaxies-with-them
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3/16/23 at 3:35pm
Organization
Live Science
Author
Ben Turner
Astronomers used NASA's Chandra X-ray Observatory to spot two pairs of gigantic black holes set for two separate, first-of-their-kind collisions.
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