Most people know black holes slow down time near their event horizons. But there’s a weirder effect—some black holes actually speed up time for objects orbiting them. Take the supermassive black hole at the center of our galaxy, Sagittarius A*. Stars whipping around it experience gravitational time dilation, but because they’re moving so fast—at a significant fraction of the speed of light—they also experience relativistic time contraction. The result? To an outside observer, these stars age faster than they would elsewhere in the galaxy. Gravity and motion fighting over time itself—it doesn’t get much weirder than that.