Question

Like a black hole, is there a white hole?​

Answer 1

White holes appear in the theory of eternal black holes. 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....

Hence Now they are Extended xd

Answer 2

Answer:

In theory, a white hole looks similar to a black hole, but instead of sucking matter in, a white hole pushes matter away. White holes were long thought to be a figment of general relativity born from the same equations as their collapsed star brethren, black holes.