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What’s the Deepest We’ve Ever Dug Into the Earth? Ask Smithsonian
What’s the Deepest We’ve Ever Dug Into the Earth? Ask Smithsonian
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Started by scientists in 1970, and completed decades later, the deepest whole ever dug is only 9 inches across, the Kola Borehole.
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Infobase
Smithsonian Media (Firm)
Subjects
Geology.
Lithosphere.
Earth (Planet)--Mantle.
Geology, Structural.
Historical geology.
Earth sciences.
Physical geology.
Earth (Planet)--Crust.
Language
English
Series
Ask Smithsonian Ask Smithsonian.