The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The heart of an astronaut actually gets smaller when in outer space.
216
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
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
There are two golf balls sitting on the moon.
721
Astronauts cannot burp in space.
232
Earth is the only planet in our solar system that's not named after a god or goddess.
17