The Earth gets 100 tons heavier every day due to falling space dust.
673
Summer on Uranus lasts for 21 years.
358
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
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
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Today's top fuel dragsters take off with more force than the space shuttle.
120