Astronomers have discovered a pair of supermassive black holes that whirl around each other every two years. The post These Two Black Hole Behemoths Will Merge in 10,000 Years appeared first on Sky & Telescope.
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A Supermassive Black Hole on the Move
This supermassive black hole is restless, and astronomers want to know why. The post A Supermassive Black Hole on the Move appeared first on Sky & Telescope.
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