General Knowledge - Basic General Knowledge - Discussion

Copernicus (1473-1543) was not the first person to claim that the Earth rotates around the Sun. In Western civilisation, ancient Greek astronomer Aristarchus of Samos is generally credited with being the first person to propose a Sun-centred astronomical hypothesis of the universe (heliocentric). At that time, however, Aristarchus's heliocentrism gained few supporters and 18 centuries would then pass before Renaissance astronomer Nicolaus Copernicus produced a fully predictive mathematical model of a heliocentric system.

In 1543, Nicolaus Copernicus detailed his radical theory of the Universe in which the Earth, along with the other planets, rotated around the Sun. His theory took more than a century to become widely accepted. Hence, Nilakantha founded it first.

The scientist who first discovered that the earth revolves round the sun was Copernicus.

How he discovered that? Can anyone know the details?

Copernicus this is right answer.

Why?