Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The earth rotates more slowly on its axis in March than in September.
145
Venus is the only planet that rotates clockwise.
310