Earth
Towering structures in Earth鈥檚 depths may be billions of years old
New measurements suggest mysterious continent-sized masses in our planet鈥檚 lower mantle may be extremely stable features
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New measurements suggest mysterious continent-sized masses in our planet鈥檚 lower mantle may be extremely stable features
The Kikai-Akahoya eruption of an underwater volcano off the coast of Japan ejected enough material to fill Lake Tahoe twice, three times as much as the eruption of Mount Tambora in 1815