The light hitting the earth right now is 30 thousand years old.
163
Pluto is smaller than Russia.
9
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Some asteroids have other asteroids orbiting them.
131
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Sound doesn't travel in space.
255