If you went out into space, you would explode before you suffocated because there's no air pressure.
149
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Lightning strikes about 6,000 times per minute on this planet!
158
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
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5