The speed of light being a limit never ceases to amaze me. Combined with the vast distances (Space is big. Really, really big.) it almost seems light travels at a relative snail’s pace. Confound that with time dilation, where a photon will span the length of the universe instantly itself while we wait a day for a signal to reach Voyager…one way.

Just mind bending, depressing, and amazing all at the same time.