The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Ants make up 1/10 of the total world animal tissue. The total biomass of all the ants on Earth is about equal to the total biomass of all the people.
85
The earth is approx. 6,588,000,000,000,000,000 tons.
175
According to a 2011 poll, 32% of Russians believe that the Sun orbits Earth.
11