Sound doesn't travel in space.
255
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
Today's top fuel dragsters take off with more force than the space shuttle.
120
The earth rotates more slowly on its axis in March than in September.
145
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
A comet's tail always points away from the sun.
2