The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
41% of the moon is not visible from earth at any time.
103
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Summer on Uranus lasts for 21 years.
358
Only 55% of Americans know that the sun is a star.
986
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
It would take more than 150 years to drive a car to the sun.
569
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236