There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
It 'snows' metal on Venus.
13
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The earth is .02 degrees hotter during a full moon.
157
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Astronauts get taller when they are in space.
224