Question

The german physicist scientist proved that the earth and other planets move around the sun not in a circle but in elliptical orbits was

Answer 1

While Copernicus rightly observed that the planets revolve around the Sun, it was Kepler who correctly defined their orbits. At the age of 27, Kepler became the assistant of a wealthy astronomer, Tycho Brahe, who asked him to define the orbit of Mars.