An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Sound doesn't travel in space.
255
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The light hitting the earth right now is 30 thousand years old.
163
Astronauts get taller when they are in space.
224