A single speck of dust is half way in size between a subatomic particle and the Earth.
15
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 earth is approx. 6,588,000,000,000,000,000 tons.
175
The light hitting the earth right now is 30 thousand years old.
163
If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25