what r white holes
White holes are the opposite of black holes...or maybe they are the same:
If anything survives getting sucked into a black hole it might be ejected at a distant white hole end and into another universe...
White holes are basically theoretical anti-black holes- meaning, they are a time reversal of the black hole and eject any matter that has crossed into the event horizon.
The reason we really don't know a lot about them is that they are purely theoretical- they only arise as a solution to one of Einstein's equations, and can only exist under ideal conditions.
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