In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
The heart of an astronaut actually gets smaller when in outer space.
216
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Astronauts get taller when they are in space.
224