Question

what is a white hole?​

Answer 1

Answer:

it's would be a big space or gigantic place which is in white colour

Answer 2

White Hole

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. In addition to a black hole region in the future, such a solution of the Einstein field equations has a white hole region in its past.