 Deep space navigation is, for example, what you would see on Star Wars, where all of a sudden they're a whole other gazillion miles away, and they can find their way back to where they came from. It's all moving. There has to be a way to track it, though, right? If you're going to deep navigate space, even with our own solar system, let's say you want to get to the outer reaches of our solar system, to where you're toying with. We don't know what's out there. There's a bunch of rocks flying around. Look out, one will hit you in the head, go over to your spaceship. But