White holes
White holes are considered celestial bodies that are completely and completely opposite to black holes. They are called white not because their color is white, but because they are an object opposite to a black hole.
A white hole is a theoretical, extremely bright, strange cosmic object that acts in the opposite direction to a black hole. Just as nothing can escape from a black hole, nothing can enter a white hole.
Scientists assume that white holes - if they exist - have properties similar to black holes, such as mass, charge, and angular momentum. It also attracts matter like any other mass, but objects falling toward the white hole will not actually reach the white hole's event horizon.
For example:
1) Black holes swallow matter without allowing it to exit, while white holes expel matter without allowing it to enter through it.
2) Black holes are considered a means of traveling to the future, while white holes are considered a means of traveling to the past. 3) After a black hole swallows matter, that matter takes a wormhole and exits through the white hole in the same first form (that is, a black hole after it tears apart a star, for example, and swallows it into pieces. That star gathers and forms the star itself at the point of the white hole. If we assume that you are on board a spacecraft and spot a white hole and try to enter it, you will collide with a huge amount of energy emanating from it, sufficient to turn you and your vehicle into pieces. And if we assume that your vehicle is made of a material capable of resisting this rushing energy. You will not be able to reach either because the fabric of space-time is moving away from the white hole
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