Have you ever wondered what would happen if you just kept going away from Earth? Imagine you fly off at the speed of light. In 8.3 minutes, you’d reach our Sun. After 4 hours and 6 minutes, you’d pass the farthest planet in our solar system, and you’d have to get through this mess of comets and asteroids. How long do you think it would take, at the speed of light, to reach the farthest object humans have ever sent? It’s 23 hours and 19 minutes. Now, way beyond that, at 29 days, you’d hit this cloud of icy debris. Even traveling at the speed of light, it takes a year and a half to get through it. But hold on. At four years in, just as you’re passing our nearest star, something weird happens. You notice that you’re in kind of a clearing. It turns out our solar system is inside something called the Local Bubble. At about 100 years, you pass the edge of our radio bubble, the farthest distance our radio waves have traveled into the universe. Compared to our whole galaxy, that distance is just a tiny blue dot. It would take you 27,000 years to reach the center of the Milky Way, and another 50,000 years to reach the other edge. And if you kept going and going and going for 46.5 billion years, you’d reach the edge of our observable universe. Beyond that, the light from whatever is out there still hasn’t had time to reach Earth in the entire history of the universe. So maybe you’d find out.