Expert: Patrick Weiler - 2/6/2012

Question
I was just asking for some details on black holes. I saw the other day that basically the giant star becomes so dense and the gravity too strong that it collapses on itself into a single point. Makes sense, but i have a hard time imagining that. I guess the universe is 3-D, and is expanding.  So how could a hole be made through it as if it was 2-D? And where could it possible go?

Answer
Hello Heath...and thanks for using AllExperts
I'd like to say I had an answer for your question, but unfortunately there simply is none. What happens deep inside black holes, beyond what's known as the "event horizon," is totally unknown to science because all the known laws of physics can't be applied there. There are any number of concepts being kicked around, like so-called white holes, worm holes, etc., but so far there's no evidence that any of these exist.

"... how could a hole be made through it as if it was 2-D..?"
You might be thinking of the concept of worm holes. If such existed, they would be shortcuts to other locations in space-time. As an analogy, draw two dots on a piece of paper about 6" apart, then fold the paper so that the dots are opposite each other. You'd notice that the distance between the dots has decreased.