In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
The earth is approx. 6,588,000,000,000,000,000 tons.
175
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
The light hitting the earth right now is 30 thousand years old.
163
The United States has paved enough roads to circle the Earth over 150 times.
72
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
According to a 2011 poll, 32% of Russians believe that the Sun orbits Earth.
11