Question

What is a white hole?​

Answer 1

Answer:

In general relativity, a white hole is a hypothetical region of spacetime and singularity which cannot be entered from the outside, although energy-matter and light can escape from it. ... White holes appear in the theory of eternal black holes.

Answer 2

In generall relativity , a white hole is a hypothetic region of spacetime and singularity which cannot be entered from the outside , although energymatter , light and information can escape from it.