Fun Facts 
- Pluto is 3.7 billion miles away from the sun.
- Pluto is very cold because of its distance from the sun.
- Saturn's main moon is Titan.
- Scientists think there might be a tenth planet.
- Our solar system is nearly five billion years old.
- Pluto is smaller than Earth's moon.
- Neptune is sometimes farthest from the Sun.
- Uranus is know as the upside down planet. They call it that because it spins on its side.
- Saturn has more than 1,000 rings of ice and dust.
- Mars's surface is very rocky.
- Craters on Mercury can be more than 600 miles wide.
- Venus is the hottest planet.
