All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Astronauts get taller when they are in space.
224
Earth is the only planet in our solar system that's not named after a god or goddess.
17
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127