Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The population of the Earth has more than doubled since 1950.
151
Venus is the only planet that rotates clockwise.
310
The earth travels through space at 660,000 miles per hour.
189
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Buzz Aldrin’s mother’s maiden name was Moon.
9
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118