The population of the Earth has more than doubled since 1950.
151
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
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
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The earth rotates more slowly on its axis in March than in September.
145
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Some asteroids have other asteroids orbiting them.
131