Pluto is smaller than Russia.
9
Venus is the only planet that rotates clockwise.
310
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
41% of the moon is not visible from earth at any time.
103
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
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121