Faster-than-light cosmology explained

Truthfully, I said nobody knows, but it also occurred to me that even if the universe were spatially closed like the surface of the Earth, it might be expanding so quickly that even traveling near the speed of light, your spaceship would never come back to where it started. Think of the universe as the surface of a balloon blowing up. Stars and galaxies dot its surface. The farther apart two galaxies are; the faster they recede from one another. The expansion is so rapid points far enough away from one another are expanding apart faster than the speed of light. As you travel away from your home galaxy at near the speed of light, space in front of you that is far enough away is actually receding from you faster than you can reach it. That means that you will never reach galaxies beyond a certain distance from you. <a href="https://medium.com/the-infinite-universe/why-galaxies-receding-faster-than-the-speed-of-light-are-still-visible-664ff21f0829">Learn More</a>