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
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The population of the Earth has more than doubled since 1950.
151
The sun is 330,330 times larger than the earth!
190
Buzz Aldrin’s mother’s maiden name was Moon.
9