All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
The Earth gets 100 tons heavier every day due to falling space dust.
673
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 two golf balls sitting on the moon.
721
If two pieces of metal touch in space, they become permanently stuck together.
808
The population of the Earth has more than doubled since 1950.
151
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Mars had an oxygen-rich atmosphere around 4 billion years ago
13