The light hitting the earth right now is 30 thousand years old.
163
Astronauts get taller when they are in space.
224
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Venus is the only planet that rotates clockwise.
310
The heart of an astronaut actually gets smaller when in outer space.
216
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Pluto is smaller than Russia.
9