The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Astronauts cannot burp in space.
232
Pluto is smaller than Russia.
9
There are two golf balls sitting on the moon.
721
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11