What’s the difference between black and white holes? First, a | Outer Space 🚀

What’s the difference between black and white holes?

First, a white hole is a hypothetical physical object in the Universe, their existence is not proven

A black hole differs from a white not only by its color, but also by the quality of its opposite. If a black hole is an entrance without an exit, a white hole is an "exit without an entrance". Thus they can form one "cosmic tunnel".