The heart of an astronaut actually gets smaller when in outer space.
216
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Jupiter is bigger than all the other planets combined.
254
It would take more than 150 years to drive a car to the sun.
569
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219