Sound doesn't travel in space.
255
41% of the moon is not visible from earth at any time.
103
The sun is 330,330 times larger than the earth!
190
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
Today's top fuel dragsters take off with more force than the space shuttle.
120
Jupiter is bigger than all the other planets combined.
254
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
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