In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
41% of the moon is not visible from earth at any time.
103