Physics | Mathematics | Science on Instagram: "In a vacuum, where there’s no air, gravity is the only force influencing how objects fall. That means a feather and a bowling ball drop at exactly the same rate. NASA proved this at the Space Power Facility in Ohio by removing all the air from a massive chamber and letting both objects fall side by side. The outcome was incredible—they landed at the same time. Without air resistance, an object’s mass doesn’t matter—gravity pulls everything equally.