Some asteroids have other asteroids orbiting them.
131
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Jupiter is bigger than all the other planets combined.
254
The heart of an astronaut actually gets smaller when in outer space.
216