At the KTH Royal Institute of Technology in Stockholm, Hawking challenged the standing theories about black holes. For the last 40 years it was thought that nothing could escape a black hole. With his new theories, Hawking states that entering a black hole wouldn’t be a person's end. His idea is that when you enter a black hole, you wouldn’t be destroyed but simply end up in another universe. He says:
“The existence of alternative histories with black holes suggests this might be possible. The hole would need to be large and if it was rotating it might have a passage to another universe. But you couldn’t come back to our universe. So although I’m keen on space flight, I’m not going to try that.”
Unfortunately, he does not condone space travel through black holes, but he has cleared up confusion for many mathematicians and scientists.
SourceFed.com quoting Stephen Hawking