The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
Jupiter is bigger than all the other planets combined.
254
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
It 'snows' metal on Venus.
13
The sun is 330,330 times larger than the earth!
190
The light hitting the earth right now is 30 thousand years old.
163
The heart of an astronaut actually gets smaller when in outer space.
216
If two pieces of metal touch in space, they become permanently stuck together.
808