Geology

  • A History of Starts and Stops
    Scientists have found that plate tectonics on Earth may have ground to a halt in our planet's past - and may do so again. Plate tectonics are responsible for creating geologic features like mountains and ocean basins, and play an important role in maintaining Earth's
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  • The Mystery of the Missing Matter
    A new theory may explain why the composition of Earth's mantle differs from that of chondrite -the material from which the Earth was originally formed. The theory may help us understand the formation and evolution of our planet.
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  • A Breathable Earth
    Geologists have determined when Earth may have first supported an oxygen-rich atmosphere similar to that of today. The study provides clues about how life on Earth has evolved alongside our planet's changing climate.
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  • Earth's Life-Giving Rocks
    If minerals deep in the Earth's mantle were not able to store oxygen, there might not be life on our planet's surface. New research results provide insight into how the subsurface of our planet helps maintain the Earth's habitability.
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  • Earth’s Life-Giving Rocks
    If minerals deep in the Earth's mantle were not able to store oxygen, there might not be life on our planet's surface. New research results provide insight into how the subsurface of our planet helps maintain the Earth's habitability.
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  • A Volcanic Switch
    A switch from predominantly undersea volcanoes to a mix of undersea and terrestrial ones may have helped to increase oxygen levels in the ancient Earth's atmosphere. This increase allowed for the evolution of complex oxygen-breathing organisms.
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  • Different at the Core
    Silicon isotopes from the Earth, meteorites and planetary material have shown that the Earth's core may have formed differently than that of Mars. Additionally, the data shows that atoms of silicon from the Earth and Moon were likely mixed in the early stages of their
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  • The Dreadful Hammers of Jules Verne
    In the nineteenth century, the new science of geology was greatly affected by technological innovations. From Astrobiology Magazine, European Edition is an essay about how Jules Verne used his novels, such as "Journey to the Centre of the Earth," to explore the latest geological
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  • Building a Habitable Earth
    To understand the origin of life we need to know about the conditions on the early Earth, but the rock record for the first 700 million years of Earth history is gone. From Astrobiology Magazine, European Edition is a story about techniques scientists are
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  • Life’s Slimy Beginnings
    From Astrobiology Magazine, European Edition is a podcast interview with Frances Westall of the Centre de Biophysique Moléculaire in France. She discusses her search for traces of life in the Earth´s most ancient rocks, and explains how fossilized microbial mats provide information about life´s slimy
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