Postage Stamp for Pluto Discoverer Clyde Tombaugh
Astronomer Clyde W. Tombaugh discovered the planet Pluto on February 18, 1930. He was just 24 years old. Pluto was the only planet discovered in the twentieth century and the only one found by an Amer... continue reading »
"I Love Pluto! City and State Lakewood, Ca"
"a great American"
"One of the most unbelievable american I've have ever heard about!! City and State Placentia, CA"
"Very important scientific discovery that should be recognized and brought to the public. City and State Temple City, California"
"Honor an American City and State Costa Mesa, CA"
