Related terms:
clyde tombaugh
naturalist
geologist
Wikipedia sources:
Corona (satellite)
Origin theories of Christopher Columbus
Definition of planet
Vandenberg Air Force Base
Gonville and Caius College, Cambridge
Clyde Tombaugh
Phoenix Islands
Viking
North America
Alexander von Humboldt
List of chemists
List of geologists
Frederick Banting
Culture of the United Kingdom
Iapetus (moon)
Treasure hunting
List of Scottish scientists
Context for words:
discoverer
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