The earth travels through space at 660,000 miles per hour.
189
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Astronauts cannot burp in space.
232
Some asteroids have other asteroids orbiting them.
131
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277