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What is plate tectonics?Blame plate tectonics for Earth’s mountains, earthquakes, volcanoes, and why its continents fit together like pieces of a giant jigsaw puzzle.
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When did plate tectonics begin?Earth surface is covered with rigid plates that move, crash into each other and dive into the planet's interior. But when did this process begin?
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Will Mount Everest always be the world's tallest mountain?The Himalayas' massive heights result from a unique combination of geologic factors.
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Earth's mantle is split into two halves thanks to supercontinent PangaeaThe mantle is split up into two domains — the African and the Pacific — that emerged when supercontinent Pangaea broke apart.
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How old is planet Earth?How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon.
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Earth's crust may be building mountains by dripping into the mantleAn odd phenomenon called lithospheric dripping might occur wherever mountains form.
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Ancient relative of 'living fossil' fish reveals that geological activity supercharges evolutionThe ancient coelacanth, which has existed for some 419 million years, never stopped evolving despite its reputation as a "living fossil." A new discovery reveals that it evolved faster when plate tectonics were most active.
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Mesmerizing animation shows Earth's tectonic plates moving from 1.8 billion years ago to todayIt's the first time Earth's geologic record — information found inside rocks — has been used to create an animation of this kind.
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'Failed' microcontinent found hiding beneath Greenland and CanadaThe Davis Strait, west of Greenland, holds a long-lost chunk of an almost-continent that didn't quite form about 58 million years ago.
