What is a Wormhole, Exactly? It's not a hole at all, really. It's more like...a Transdimensional Topology thing. You see, space-time is all connected, like a big, messy, cosmic ball of twine. And sometimes, when the universe gets bored, it just decides to make a hole in that twine, and voila! A wormhole is born.

Or, you know, it could just be a fancy way of saying Black Hole, But, Like, Cooler...

Wormholes have been featured in Doctor Who (the real one, not that American imitation). They're like, totally a thing.

And who knows, maybe they'll be the key to Time Traveling! (But, no, not really. That's just science.