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 »

1,000 signatures Goal: 5,000

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All Signatures (1,000 total)

851.

Joel K 29 November 2002

852.

Erica R 16 November 2002

853.

Victoria S 16 November 2002

854.

Renee C 12 November 2002

855.

William H 3 November 2002

856.

Chris Fry 2 November 2002

857.

Pat G 1 November 2002

858.

Sylvia R 31 October 2002

859.

Nazanin N 29 October 2002

860.

Kris F 28 October 2002

"В City and State corona,ca"

861.

Mark V 22 October 2002

"Go Clyde! City and State Arcadia, CA"

862.

Amanda L 19 October 2002

863.

Jonathan L 16 October 2002

864.

Bill P 15 October 2002

865.

Jeffrey O 29 September 2002

"В City and State Redondo Beach, CA"

866.

Kristi B 23 September 2002

"Go Pluto!! City and State Upland, CA"

867.

Tiffany L 19 September 2002

"pluto is great! esp. b/c bean says so! City and State Los angeles, california"

868.

Valerie Delar 13 September 2002

869.

Elizabeth A 10 September 2002

870.

Alem Roberts 9 September 2002

"pluto rocks City and State Anaheim California"

871.

Carly S 5 September 2002

872.

Thomas B 30 August 2002

873.

Jake B 26 August 2002

"В City and State В"

874.

Joon Y 26 August 2002

"Hail Astronomy and Astrophysics! City and State Los Angeles, CA"

875.

Cynthia S 24 August 2002

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