If NASA sent birds into space they would soon die; they need gravity to swallow.
146
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
Jupiter is bigger than all the other planets combined.
254
Sound doesn't travel in space.
255
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6