Could black holes be portals to other universes? – space – 27 April 2007 – New Scientist Space:
Wormhole study abstract
The objects scientists think are black holes could instead be wormholes leading to other universes, a new study says. If so, it would help resolve a quantum conundrum known as the black hole information paradox, but critics say it would also raise new problems, such as how the wormholes would form in the first place.