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
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The heart of an astronaut actually gets smaller when in outer space.
216