Building Black Holes in a Lab
This is a really interesting video from PBS Space Time.
So if Black holes leak away mass via Hawking Radiation, does this mean that as white holes also exist, and expel matter rather than suck matter in. then are they also contributing to a mass reduction. This probably assumes the theory that there is a white hole at the other end of the Black hole, otherwise it raises questions as to where does all that matter go?
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A thread asking about black hole mass loss via white holes can be found on Science Forums here if anyone would like to contribute to the conversation.