Imagine T. rex stomping around under a sky full of stars that aren’t even there today. Turns out, when dinosaurs ruled the Earth, the universe was actually smaller—like, galaxies were literally closer together! Our solar system was even on the opposite side of the Milky Way. The universe has been expanding ever since the Big Bang, so dino-era Earth was part of a much more tightly packed cosmos. Mind blown? Just wait till you realize how much the universe will change in the next 100 million years! #Science #Dinosaurs #Universe