The Earth gets 100 tons heavier every day due to falling space dust.
673
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Venus is the only planet that rotates clockwise.
310
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