Stephen Hawking has proposed a new theory with regard to black holes at a conference in Stockholm. As per Hawking, space travelers can escape from black holes, but would not be able to return to their own universe and will escape somewhere else.

Hawking said at the conference held at Sweden's KTH Royal Institute of Technology that black holes might not be as black as they have been thought to be. Also, black holes could be a way to get through to an alternative universe.

Through this idea, Hawking has addressed a 40-year-old cosmological mystery called the Black Hole Information Paradox. The basis for the paradox is the conflict between quantum mechanics and the theory of general relativity.

Hawking said, "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".

Hawking has tried to solve a puzzle that has been trouble scientists for past so many years. Physicists do not know what happens to things when they go beyond the horizon, where even light cannot reflect back.

As per Hawking, rather than swallowing information a black hole at its event horizon encodes it within two dimensional holograms known as super translations. The information is then emitted within quantum fluctuations.