The heart of an astronaut actually gets smaller when in outer space.
216
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
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
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
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
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