And this is what's really mind blowing: there's a thing known as virtual particles that's happening all the time, even around us right now where there's no vacuum. These virtual particles come into existence and then disappear. And we believe they exist for a couple of reasons. One big reason is the fact that our universe continues to expand, even though that shouldn't necessarily happen. Where are we getting that extra force that pushes it, that causes it to keep expanding? Well, these particles that pop into existence and disappear may be the answer. Even crazier is an effect we've observed known as the Casimir Force. If you put two pieces of metal nanometers apart inside a vacuum, they will be pushed together. One of the most popular theories for why this happens is that these virtual particles popping into space and then disappearing are actually reflecting off of the metal.

Description: Remake UnderTale: Tortured - Make a Horror Sans Sprite - Remake J! DustDust -