Summer on Uranus lasts for 21 years.
358
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
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
Buzz Aldrin’s mother’s maiden name was Moon.
9
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The earth is .02 degrees hotter during a full moon.
157
The Earth gets 100 tons heavier every day due to falling space dust.
673