In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
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
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The heart of an astronaut actually gets smaller when in outer space.
216
It would take more than 150 years to drive a car to the sun.
569