A comet's tail always points away from the sun.
2
Summer on Uranus lasts for 21 years.
358
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Earth is the only planet in our solar system that's not named after a god or goddess.
17
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
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46