In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The heart of an astronaut actually gets smaller when in outer space.
216
Pluto is smaller than Russia.
9
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Earth is the only planet in our solar system that's not named after a god or goddess.
17
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82