Summer on Uranus lasts for 21 years.
358
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
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
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Sound doesn't travel in space.
255
Jupiter is bigger than all the other planets combined.
254