Why Galaxies Are Racing Away From Us

Ever since the Big Bang, the universe has been expanding outward in every direction. Galaxies aren’t just moving through space - space itself is stretching between them. That creates a strange loophole in physics: while it’s true that nothing can travel faster than the speed of light through space, space itself can expand at any speed it likes. In fact, some distant galaxies are effectively moving away from us faster than light because of this expansion. When you consider there are potentially trillions of galaxies, each with billions of stars and planets, it starts to feel less like a possibility… and more like an inevitability that life exists somewhere else out there.