Mars had an oxygen-rich atmosphere around 4 billion years ago
13
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
It would take more than 150 years to drive a car to the sun.
569
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8