“Flash of Light from a Faraway Galaxy 4 Billion Years Ago” –First Triple Black Hole Merger

"Flash of Light from a Faraway Galaxy 4 Billion Years Ago" --First Triple Black Hole Merger

 

In a distant galaxy, two invisible merging black holes were nestled within a disk surrounding a much larger, invisible supermassive black hole 100 million time larger that the sun surrounded by a swarm of smaller black holes and stars exploded with light, generating gravitational waves, ripples in spacetime, that were captured as a flash of light four billions years later for the first time by astronomers at the NSF’s Laser Interferometer Gravitational-wave Observatory (LIGO) and the European Virgo detector on May 21, 2019, in what might prove to be an iconic event called S190521g.

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