Question

What is a White Hole ?​

Answer 1

white hole is considered the opposite of a black hole. White holes are eruptions of matter and energy and nothing can get inside them. White holes are a possible solution to the laws of general relativity. This law implies that if eternal black holes exist in the universe, then a white hole should also exist.

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Answer 2

White holes are theoretical cosmic regions that function in the opposite way to black holes. Just as nothing can escape a black hole, nothing can enter a white hole. White holes were long thought to be a figment of general relativity born from the same equations as their collapsed star brethren, black holes.