If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
A single speck of dust is half way in size between a subatomic particle and the Earth.
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
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
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