Black holes: to the event horizon and beyond
NOVA Presents
00:00
The First Discoverion of Black Hole Ringing the Shape of Space Time
When a black hole wanders close to another, they become engaged in a gravitational dance until they eventually merge. As they orbit around each other, they not only curve space time, they create waves within it. And these two black holes are like mallets on a drum. They're creating waves in the shape of the drum of space time. Those waves are basically unimpeded because gravity is so weak. So we record them very much like you would record the ringing shape of a drum and play back as sound.
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