However, there is no evidence white holes actually exist. If they generate new matter and energy, this would violate the [[Law of the conservation of mass]]. Therefore, some scientists have proposed that matter falling into black holes goes through a [[wormhole]] to emerge at a white hole. While such wormholes are allowed by general relativity, they would be extremely unstable<ref>http://casa.colorado.edu/~ajsh/schww.html</ref>, and there is no evidence that they exist. | However, there is no evidence white holes actually exist. If they generate new matter and energy, this would violate the [[Law of the conservation of mass]]. Therefore, some scientists have proposed that matter falling into black holes goes through a [[wormhole]] to emerge at a white hole. While such wormholes are allowed by general relativity, they would be extremely unstable<ref>http://casa.colorado.edu/~ajsh/schww.html</ref>, and there is no evidence that they exist. |