The light hitting the earth right now is 30 thousand years old.
163
The population of the Earth has more than doubled since 1950.
151
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Summer on Uranus lasts for 21 years.
358
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
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
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100