The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
It would take more than 150 years to drive a car to the sun.
569
Pluto is smaller than Russia.
9
Some asteroids have other asteroids orbiting them.
131
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Summer on Uranus lasts for 21 years.
358
41% of the moon is not visible from earth at any time.
103