Earth is the only planet in our solar system that's not named after a god or goddess.
17
Pluto is smaller than Russia.
9
It would take more than 150 years to drive a car to the sun.
569
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Sound doesn't travel in space.
255