Pluto is the smallest planet
in the solar system. Some scientists
think this planet may have been a satellite of Neptune
time ago. If that is so, Pluto may have been
pulled away by the gravity of still another planet - a planet not yet discovered.
The diameter at the equator of pluto is 1,420 miles
Pluto is 3,666 million miles away from the sun,
and it is -382 degrees Fahrenheit on the surface. A Pluto year is 247.7
Earth years. It takes 6 days and 9 hours in Earth time for a whole
day in Pluto time.
FUN FACT: Pluto is the only planet not visited
by a space probe. There is only one moon, it has an irregular orbit, and
it is a frozen dead world.
ABOUT THE PLANETS