The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
Astronauts cannot burp in space.
232
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
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 temperature of the earth's interior increases by 1 degree every 60 feet down.
115