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
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
41% of the moon is not visible from earth at any time.
103