I've been getting the feeling lately that we know a lot less than we think. Because of science, we tend to think we do know and can understand a lot. And maybe we can. But if you were in a huge room, where you were fed and clothed and had all your needs met, and everybody you knew was there, too (it's a big room, you know) you might think that the room was complete, an all-in-all, you might even call it the universe, and you might acknowledge that it was big enough to include nooks and crannies and mysteries that you just hadn't had a chance to explore yet and discover. If, one day, however, you heard a rumble from "somewhere else" -- maybe another room, or even another building -- you might then posit supernatural forces. Then again, being of a cooler scientifically oriented mind, you might rather posit the existence of an alternative or parallel universe. You might call it an extra dimension.

Modern astronomers, it seems, have found such a sign and are experiencing that odd moment of wonderment just now. They've discovered a giant void in space -- 100 billion lightyears across -- and are speculating it might be evidence of a wall between this universe and another. I certainly don't know, but then again this type of story does make you wonder how little we do know. And to stretch your imagination just a little bit to try and account for the new information.

Read about it all right here.