A comet's tail always points away from the sun.
2
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Today's top fuel dragsters take off with more force than the space shuttle.
120
The earth travels through space at 660,000 miles per hour.
189