Sound doesn't travel in space.
255
There are two golf balls sitting on the moon.
721
Jupiter is bigger than all the other planets combined.
254
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Summer on Uranus lasts for 21 years.
358
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Astronauts cannot burp in space.
232