There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The sun is 330,330 times larger than the earth!
190
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Buzz Aldrin’s mother’s maiden name was Moon.
9
Only 55% of Americans know that the sun is a star.
986
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194