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Gravitational waves are helping us crack the mystery of how pairs of black holes form

9 Sep 2017, 08:36 UTC
Gravitational waves are helping us crack the mystery of how pairs of black holes form C. Henze/NASA Ames Research Center

A tiny disturbance in space became an enormous scientific discovery when LIGO amazingly managed to register it early on the morning of September 14, 2015. This was the first ever observation of a “gravitational wave” – a minute ripple in the structure of spacetime itself – predicted by Albert Einstein a century ago. The signal came from two black holes merging more than a billion light years away, and reached our planet on that very morning.

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