Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
It takes eight and a half minutes for light to get from the sun to earth.
159