Two Monsters, One Galaxy, and a Collision 100 Years Away!

Markarian 501 (Credit : NASA)

Deep in the heart of a distant galaxy, two monsters are locked in a death spiral and for the first time, they have been caught them in the act. A new study has confirmed the first close pair of supermassive black holes ever detected, orbiting each other every 121 days and closing in fast. If the models are right, they could collide within a century.

Universe Today
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