The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
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
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
If NASA sent birds into space they would soon die; they need gravity to swallow.
146