The heart of an astronaut actually gets smaller when in outer space.
216
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
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
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4
41% of the moon is not visible from earth at any time.
103
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