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In 1978, a Mexico City street dig unearthed a colossal Aztec stone disk that reopened the sacred heart of the ancient empire

In 1978, utility workers in Mexico City unearthed the massive Coyolxauhqui Stone, a significant Aztec artefact. This discovery revealed the Templo Mayor, the empire’s religious and political centre, buried beneath the modern city. The find initiated a major archaeological dig, uncovering a vast complex and demonstrating that Aztec history remains present beneath the urban landscape. […]

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Scientists looked inside Bolivia’s zombie volcano, and the reality eased everyone’s fears

Mount Uturuncu, a Bolivian volcano, is not on the brink of a massive eruption as previously feared. New research reveals its ‘zombie’ behaviour stems from migrating hydrothermal fluids and gases, not an imminent magma buildup. While still active and hot, this discovery reduces immediate eruption concerns, suggesting the volcano is expelling steam rather than preparing […]