Summer on Uranus lasts for 21 years.
358
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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Earth is the only planet in our solar system that's not named after a god or goddess.
17
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5