All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Astronauts get taller when they are in space.
224
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The earth is .02 degrees hotter during a full moon.
157
The earth travels through space at 660,000 miles per hour.
189
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
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14