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Wednesday, July 21, 2004
Black Holes
the next generation... From ABC News: "Hawking, 62, said he no longer believes a 1980s theory that black holes might offer passage into another universe, a rival explanation for identifying where matter and energy go when consumed by a black hole.
Hawking now sides with particle physicists who have long insisted that any matter swallowed by a black hole can't just disappear but must eventually generate a specific output. The latest theory offers hope that scientists one day may identify the history of what a black hole has taken in over the eons by decoding what it emits.
"There is no baby universe branching off (inside a black hole), as I once thought. The information remains firmly in our universe," Hawking said in a speech to about 800 physicists and other scientists from 50 countries. "I'm sorry to disappoint science fiction fans, but if information is preserved, there is no possibility of using black holes to travel to other universes."
Posted at 5:47 PM by John.
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