If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
A comet's tail always points away from the sun.
2
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
Sound doesn't travel in space.
255
When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22