The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127