Stories from the White Holes

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          Stories from the White Holes
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  • A white hole, in general relativity, is a hypothetical region  of spacetime which cannot
     be entered from the outside, but from which matter and light may escape.
     In this sense it is theeverse of a black hole, which can be entered from the outside,
    but from which nothing including light, may escape. However, it is theoretically
    possible for a traveler to enter a rotating black hole, avoid the singularity, and travel
     into a rotating white hole which allows the traveler to escape into another universe(source)