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A fourth gravitational wave has been detected

Science September 27, 2017
Scientists detected another burst of gravitational waves coming from black holes that collided two billion years ago.

A fourth gravitational wave has been detected — and we've pinpointed its location better than ever before

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this is cool. Now have 3 gravitational wave detection sites across the globe. That means we can better pin down the source of the waves.

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4th detection For the first time by the 3-detector LIGO-Virgo global network More info:

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This is the 1st time a detection was observed by observatories, located thousands of miles apart

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The observation was a merger of 2 , and the event has been designated “GW170814.” More

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Two black holes merged almost 2 billion years ago and we have the receipts

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Beautiful new detection of two merging black holes that shook the entire Universe. Now seen and confirmed across two continents!

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We do have a much better idea where these latest merging black holes are, though, thanks to a new European experiment

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This is the first (published?) that has seen!

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graphic shows how 3 detectors pinpoint the source of the gravitational waves much, much better than 2

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these announcements are going to become commonplace. But it's still cool we can detect ripples in space-time ...

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especially considering that the waves formed more than a billion years ago by the collision of a couple of black holes

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And they so happened to pass through the Earth this August (you couldn't have noticed). And we had the right machines turned on to listen.

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The result of A LOT pf work by and : only 6 weeks between the detection and the announcement. And so many things to check!

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And there's even more amazing facts on our fact sheet - you can download it at

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Time for an to the detection of and the future of our 'ego_virgo detector network!

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