Today's top fuel dragsters take off with more force than the space shuttle.
120
Lightning strikes about 6,000 times per minute on this planet!
158
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147