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
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The heart of an astronaut actually gets smaller when in outer space.
216
Astronauts get taller when they are in space.
224