Heliocentric theory

The Heleocentric theory was originally the idea that the sun is at the centre of the Universe while the Earth are the other planets revolve round the sun. The earliest important or known advocate of the heleocentric theory was the Ancient Greek philosopher Aristarchus though it took over a millenium before great scientists, notably Galilleo and Keplerproved the heleocentric theory.

Today we the heleocentric theory has been modified to say thatthe sun is the centre of the Solar System ony. We know the sun does not occupy any special place in the Milky Way Galaxy or in the universe.