Watch this video to find out more about the Earth, planets in our Solar System and other planets far ... the Sun at different speeds. These lines show us the paths they take which we call orbits.

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

However, this year a powerful new telescope is coming online that could prove once and for all that there really is a ninth planet in our Solar System. The same year that Pluto was ignominiously ...

Related Stories Scientists discover the closest Earth-sized planet to our solar system Scientists believe ... Their models ...

has become the second human-made object to leave our Solar System. It was launched 16 days before its twin craft, Voyager 1, but that probe's faster trajectory meant that it was in "the space ...