Pluto was never visited.
its not!
If you count Pluto, the answer is PLUTO.
Pluto was first observed by the astronomer Percival Lowell.
Yes, but a meteor hit Pluto and a small part of Pluto went flying off and landed in our Solar System.
The discoverer of Pluto was Clyde W. Tombaugh.
Disney's Pluto was first seen in "The Chain Gang" 1930 .
Neptune was discovered before Pluto.
when was Pluto frist seen and in what movie
No one has visited Pluto yet.
Pluto first appeared in The Picnic in 1930. He was originally called Rover.
The reason Pluto is not a planet is because it is very small, smaller than Earth's moon!
because it didnt want to