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.
Two pairs of gigantic black holes, each in a different dwarf galaxy, are speeding towards each other, and they're set for two separate, never-before-seen collisions.
Related: Monster black hole may have killed this galaxy's star-forming power, James Webb Telescope reveals Past simulations of the"cosmic dawn" — the epoch encompassing the first billion years of the universe — have suggested that billowing clouds of cold gas may have coalesced into giant stars that were doomed to rapidly collapse, creating black holes. As these black holes grew larger, the ever-growing trains of gas surrounding them collapsed into stars — eventually forming dwarf galaxies.
—'Runaway' black hole the size of 20 million suns found speeding through space with a trail of newborn stars behind itTo search for these elusive black hole mergers, the researchers conducted a survey of Chandra X-ray observations before comparing them with data collected in infrared frequencies by NASA's Wide Infrared Survey Explorer and in optical frequencies by the Canada-France-Hawaii Telescope .
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