Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
41% of the moon is not visible from earth at any time.
103
It would take more than 150 years to drive a car to the sun.
569
Venus is the only planet that rotates clockwise.
310
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
The population of the Earth has more than doubled since 1950.
151