The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
There are two golf balls sitting on the moon.
721
Venus is the only planet that rotates clockwise.
310
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
The earth travels through space at 660,000 miles per hour.
189
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The population of the Earth has more than doubled since 1950.
151