The Earth gets 100 tons heavier every day due to falling space dust.
673
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
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
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124