White holes

by: Ben Markham

What are white holes?

In general relativity, a white hole is a hypothetical region of spacetime which cannot be entered from the outside, although light and matter can escape from it. In this sense, it is the reverse of a black hole, which can only be entered from the outside and light and matter cannot escape.
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When pressure becomes too high, something implodes. White holes implode when the pressure around them becomes too high. They are turned into black holes after approximately 54.34 milliseconds.