The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
Summer on Uranus lasts for 21 years.
358
It 'snows' metal on Venus.
13
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16