The population of the Earth has more than doubled since 1950.
151
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Pluto is smaller than Russia.
9
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
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