Black Holes “Chirp” Repeatedly When They Merge – Futurism

Chirp Twice
Before and after two black holes merge together, they give off a complicated series of gravitational waves and scientists just learned how to decode what they mean.
Previous gravitational wave recordings of a post-merger black hole resembled a bell a single tone gradually fading away. But now, research published Thursday in the journal Nature Communications Physics shows that far more is going on. When listening to the waves given off by the black holes equator rather than its smoo…

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