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The 23-centimetre-diameter (9 in) boreholes were drilled by branching from a central hole. [1] The deepest reached 12,262 metres (40,230 ft; 7.619 mi) in 1989, the deepest human-made hole on Earth, and remains so as of 2024 . In terms of true vertical depth, it remains the deepest borehole in the world.
Oct 20, 2023 · Learn about the history, challenges and discoveries of the Kola Superdeep Borehole, which reached a depth of 40,230 feet (12,262 meters) in 1989. Find out why the Soviets drilled so deep and what they found in Earth's crust.
May 6, 2019 · This is the Kola Superdeep Borehole, the deepest manmade hole on Earth and deepest artificial point on Earth. The 40,230ft-deep (12.2km) construction is so deep that locals swear you can hear...
Feb 22, 2020 · Learn about the deepest hole ever dug by humans, which reaches 7.5 miles below the Earth's surface in Russia. Find out why scientists drilled it, what they discovered, and why it's called the well to hell.
Nov 10, 2009 · Learn about the deepest hole in the world, drilled by the Soviets to study the Earth's crust and find fossils of ancient life. Discover the challenges, discoveries and mysteries of this engineering feat.
Learn about the Kola Superdeep Borehole, the deepest hole ever drilled into Earth's crust, and the discoveries it made about the nature and history of our planet. Listen to the podcast episode, read the synopsis, and download the documents to learn more.
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Aug 21, 2019 · Learn how Soviet scientists drilled more than 12 kilometres into the Earth's crust to discover water, fossils and hot rocks. Find out why they couldn't go deeper and what we can learn from this amazing feat of science.
