An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
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
Only 55% of Americans know that the sun is a star.
986
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
Sound doesn't travel in space.
255
A comet's tail always points away from the sun.
2