There are eight planets in the solar system, and each travels on its own path around the sun. But of these planets, which is nearest to the sun? Mercury is a strange little world. There are some ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

Though all the eight major planets of the Solar System revolve around the Sun in the same flat plane, they do it at different speeds. The planet closest to the Sun is Mercury and it takes 88 days ...