41% of the moon is not visible from earth at any time.
103
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
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
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The earth travels through space at 660,000 miles per hour.
189
Venus is the only planet that rotates clockwise.
310