Atlantic Ocean. The Atlantic Ocean is divided by the equator to create the North Atlantic and South Atlantic oceans.

Pluto. Pluto was discovered in 1930 by Clyde Tombaugh.

Apollo 13. NASA called the Apollo 13 mission a "successful failure".

Ellipse. A ellipse looks like a circle that's been squashed into an oval in places.

Organs. There are 78 different organs in the human body.

Clouds. Hailstones grow larger as they move about the cloud and collide with rain drops before falling to Earth.