In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
The light hitting the earth right now is 30 thousand years old.
163
According to a 2011 poll, 32% of Russians believe that the Sun orbits Earth.
11
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Earth is the only planet in our solar system that's not named after a god or goddess.
17