Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Some asteroids have other asteroids orbiting them.
131
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
Venus is the only planet that rotates clockwise.
310
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Astronauts get taller when they are in space.
224