Mars has the tallest volcano in the solar system, called Olympus Mons.

Uranus spins on its side, like a rolling ball.

Your fingernails grow faster than your toenails.

A bolt of lightning is about five times hotter than the surface of the Sun.

The Amazon rainforest is home to about one in ten of all known kinds of animals.

Earth is the only planet not named after a god.

T. rex had teeth as big as bananas.