The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
The sun is 330,330 times larger than the earth!
190
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
Only 55% of Americans know that the sun is a star.
986
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194