Nothing Escapes A Black Hole… Or Does It？

Science is Future

If you fall into a black hole... can you ever get out? Physicist Dr. Brian Cox helps explain the cutting edge theories about black holes.   We're making more stories about black holes so subscribe for more!   #animation #science #tech #astronomy #blackholes #hawking #briancox

Transcript

00:00If you fall into a black hole, can you ever get back out?

00:03So the answer is, according to Einstein's theory, no.

00:07You've gone to this infinitely distorted space and time, and it's just done.

00:11But that seems not to be the whole story.

00:12Stephen Hawking figured out that something actually does escape.

00:16What's called Hawking radiation is emitted from the black hole.

00:19And so that means it's losing energy, and that means one day it will be gone.

00:23But here's what's weird.

00:24Stephen Hawking thought that that radiation didn't contain any information.

00:27But then what happened to all of the stuff that fell into the black hole?

00:31The laws of nature are quite clear on this.

00:33Information does not get destroyed.

00:35So that's what bothered everybody for a very long time.

00:38But new papers suggest...

00:39Stephen missed a bit in his calculation.

00:42Very subtle.

00:43All the information about everything that fell in is imprinted in the radiation,

00:47as you would normally expect.

00:49But that gives us a new mystery.

00:51How did the stuff that fell in get outside again as radiation?

00:55If you want to know the latest answer, subscribe.

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