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
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
Sound doesn't travel in space.
255
Earth is the only planet in our solar system that's not named after a god or goddess.
17
A comet's tail always points away from the sun.
2
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Summer on Uranus lasts for 21 years.
358