Venus is the only planet that rotates clockwise.
310
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Sound doesn't travel in space.
255
Astronauts cannot burp in space.
232
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
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
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