Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
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
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Summer on Uranus lasts for 21 years.
358
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
The population of the Earth has more than doubled since 1950.
151
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194