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
It takes eight and a half minutes for light to get from the sun to earth.
159
Pluto is smaller than Russia.
9
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
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
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
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