Did you know that time travel is real? And I don't mean just in theory. It's literally real. Here's the mind blowing part: Einstein's theory of special relativity shows us that time is kind of an illusion. By traveling near the speed of light, you can make time run slower for yourself. Imagine you're on a spaceship moving incredibly fast, close to the speed of light. While only a couple of years pass for you on the spaceship, many more years could pass on Earth. This is called time dilation. ..