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
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
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
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
In 1963, the US Military created an artificial ring around Earth, similar to that of the planet Saturn. The ring was made of copper needles and was used for worldwide communications in the case that the Soviets disabled all other methods of communication.
26