Why does Earth orbit the Sun?
Earth's Forever Fall
Why does Earth orbit the Sun?
Every year, Earth takes a long, looping walk around the Sun. It never stops, never gets tired, and never wanders off into the dark. So what keeps it circling, year after year, without a leash? The answer is one of the sneakiest forces in the universe.
That force is gravity. Gravity is just the way heavy things pull on each other. The heavier something is, the harder it tugs. And the Sun is monstrously heavy — so heavy that everything around it feels its pull, including us.
