Uploaded April 2026 | Updated September 2026, 1 week ago
90% of the seafloor has never been seen by human eyes—until now. In this episode of Earth Machine, we drain the world’s oceans to reveal a landscape of 17km high volcanoes, canyons that dwarf the Grand Canyon, and the "Earth Machine" driven by a metal core as hot as the sun. We follow the daring crew of the Wave Sentinel as they race to repair the world's fiber-optic nervous system 4km deep, and revisit the 1960 mission where two men faced 200,000 tons of pressure to reach the deepest point on the planet. This is the ultimate investigation into the violent geological forces that build our continents and, in a split second, can trigger the world’s deadliest tsunamis.
Licensed to Little Dot Studios.
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WONDER is packed with binge worthy reality documentaries for hours of entertainment. Check out our hub of diverse and empowering stories which explore the extreme side of life!
90% of the seafloor has never been seen by human eyes—until now. In this episode of Earth Machine, we drain the world’s oceans to reveal a landscape of 17km high volcanoes, canyons that dwarf the Grand Canyon, and the "Earth Machine" driven by a metal core as hot as the sun. We follow the daring crew of the Wave Sentinel as they race to repair the world's fiber-optic nervous system 4km deep, and revisit the 1960 mission where two men faced 200,000 tons of pressure to reach the deepest point on the planet. This is the ultimate investigation into the violent geological forces that build our continents and, in a split second, can trigger the world’s deadliest tsunamis.
Licensed to Little Dot Studios.
Subscribe to WONDER to watch more documentaries: youtube.com/WonderDocs
Follow us on Facebook: facebook.com/TheWonderChannel
WONDER is packed with binge worthy reality documentaries for hours of entertainment. Check out our hub of diverse and empowering stories which explore the extreme side of life!










