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 names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
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 sees about 760 thunderstorms every hour, scientists have calculated.
185
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
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