If you went out into space, you would explode before you suffocated because there's no air pressure.
149
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
More than 20 million meteoroids enter Earth's atmosphere every day.
139