While the Sun is the centre of our solar system, it only makes up about 99.8 per cent of the mass of the entire solar system.

This may explain the strange properties of the orbits of our solar system's planets, which are not quite perfectly circular, and all lie on slightly different planes. NASA artist’s conception of ...

A simple animation created by planetary ... Earth orbits the sun at 66,600 mph, and the sun orbits the Milky Way at 514,500 mph, our solar system's speed relative to the CMB is about 827,000 ...