The law that says that all planets orbit the sun in elliptical orbits is which of Kepler's three laws?
Kepler was an astronomer who discovered that all other planets orbit the sun in an elliptical orbit. He found out that the orbit of the planets follows three laws. These laws are known as Kepler's Laws of planetary motion. Kepler’s first law states that path of the planets about the sun is elliptical in shape. The center of this ellipse is the sun being located at one focus. This law is also known as the Law of Ellipses.