Jupiter's moon Ganymede, is larger than the planet Mercury!
149
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
The population of the Earth has more than doubled since 1950.
151
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
The Earth gets 100 tons heavier every day due to falling space dust.
673
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219