A comet's tail always points away from the sun.
2
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
Earth is the only planet in our solar system that's not named after a god or goddess.
17
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Summer on Uranus lasts for 21 years.
358
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9