An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The earth rotates more slowly on its axis in March than in September.
145
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
A comet's tail always points away from the sun.
2
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127