Earth is the only planet in our solar system that's not named after a god or goddess.
17
It would take more than 150 years to drive a car to the sun.
569
Venus is the only planet that rotates clockwise.
310
41% of the moon is not visible from earth at any time.
103
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Jupiter's moon Ganymede, is larger than the planet Mercury!
149