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hubie [soylentnews.org] writes:

Back in the beginning of December the JOIDES Resolution [joidesresolution.org], a scientific drilling vessel, began Expedition 360 [soylentnews.org] to drill the deepest hole into the Earth and reach the mantle. The Expedition ended at the end of January [joidesresolution.org] with a 789 meter hole, which is short of their goal of 1300 meters. They do have the distinction of having drilled the 5th deepest hole into the solid crust, and they did return both the longest single piece and the widest single piece of hard rocks recovered for scientific purposes. They hope to be able to return to the drill site to continue drilling in a future expedition.

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