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The place where you can gaze into our planet's molten heart
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Climate change likely played a role – could it happen again?
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Mesoamerica’s famous civilisation mysteriously fell about 1,000 years ago
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Cities and islands really have been lost to the ocean
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At one point in history, almost all life on Earth disappeared. Now we know why
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Catastrophes
The universe is a dangerous place, but even calamities can have their upsides