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Funky Light Signal From Colliding Black Holes Explained

Pair of merging black holes

This simulation helps explain an odd light signal thought to be coming from a close-knit pair of merging black holes, PG 1302-102, located 3.5 billion light-years away.

Credit: Columbia University

Entangled by gravity and destined to merge, two candidate black holes in a distant galaxy appear to be locked in an intricate dance.

From Jet Propulsion Laboratory/NASA
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