Physics Uncovered on Instagram: "Every object in the universe is pulling on every other object — all the time. Newton’s universal law of gravity states that the force between two objects depends on two things: their mass and the distance between them. The bigger the mass, the stronger the pull. The farther apart they are, the weaker that pull becomes — and it drops off fast, with distance squared. This single equation (write it in the comments) explains why apples fall, why the Moon orbits Earth

One of the Oldest and Most Distant Objects in the Universe Has Been Discovered