The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Buzz Aldrin’s mother’s maiden name was Moon.
9
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
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
The light hitting the earth right now is 30 thousand years old.
163