All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
It takes eight and a half minutes for light to get from the sun to earth.
159
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
41% of the moon is not visible from earth at any time.
103
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
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