![Gravitational Waves Explained For The Layman [Video]](https://i0.wp.com/www.geeksaresexy.net/wp-content/uploads/2017/09/gravt.jpg?fit=1200%2C600&ssl=1)
In September 2015, scientists witnessed something never seen before: two black holes colliding. Both about 30 times as big as our Sun, they had been orbiting each other for millions of years. A fraction of a second before the crash, they sent a vibration across the universe at the speed of light that was picked up by the LIGO detector. So what are these ripples in space? Amber L. Stuver explains.
[TED Ed]
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His name should be Hamburgerburglar, not Hamburglar! [Source: @goattoself]
