The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
If two pieces of metal touch in space, they become permanently stuck together.
808
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Pluto is smaller than Russia.
9
It would take more than 150 years to drive a car to the sun.
569