Sound doesn't travel in space.
255
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Only 55% of Americans know that the sun is a star.
986
Buzz Aldrin’s mother’s maiden name was Moon.
9
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
There are two golf balls sitting on the moon.
721