Reaching The Mantle
They reached a depth of more than 600 meters. After 8 years, Project Mohole was canceled once the financing had been reduced. The Americans couldn’t find the mantle.

Reaching The Mantle
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The Soviets
It was time for the Soviets to take their chance. Under the Pechengsky District, a group of experts started drilling into the crust. It was distinct from what the first researchers performed. It was different.

The Soviets