The population of the Earth has more than doubled since 1950.
151
The Earth gets 100 tons heavier every day due to falling space dust.
673
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Lightning strikes about 6,000 times per minute on this planet!
158
The sun is 330,330 times larger than the earth!
190