In Astronomy's 2022 list of the 20 greatest astronomers of all time, Associate Editor Michael Bakich put Johannes Kepler, born Dec. 27, 1571, in Germany, at No. 3. He was ranked behind only his ...
Kepler's laws show the effects of gravity on orbits. They apply to any object that orbits another: planets orbiting the Sun, moons orbiting a planet, spacecraft orbiting Earth.