One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The earth rotates more slowly on its axis in March than in September.
145
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
Jupiter is bigger than all the other planets combined.
254
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
A 100-pound person on Earth would weigh 38 pounds on Mars.
102