The Law of Areas

The Law of Areas, formulated by Johannes Kepler, states that as a planet orbits the Sun, a line connecting the planet to the Sun sweeps out equal areas during equal time intervals. This means that when the planet is closer to the Sun, it moves faster; when farther away, it moves slower. Essentially, the planet's speed varies to ensure the area swept over a certain period remains constant. This law reflects the conservation of angular momentum and helps describe the elliptical orbits of planets around the Sun.