Earth's Systems

  1. Physics

    Scientists Say: Convection

    Convection is a process that transfers heat through the movement of liquid or gas.

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  2. Earth

    Here’s how ice needles can sculpt natural rock art

    Striking stone patterns adorn remote cold landscapes the world over. The recipe for these adornments: Freeze, thaw, repeat.

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  3. Earth

    Scientists Say: Magma and lava

    The word magma refers to molten rock deep inside Earth. That rock is called lava when it reaches Earth’s surface.

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  4. Physics

    Research on climate and more brings trio the 2021 physics Nobel Prize

    Syukuro Manabe and Klaus Hasselmann pioneered work on simulations of Earth’s climate. Giorgio Parisi probed complex materials.

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  5. Earth

    Scientists Say: Anthropocene

    Humans are changing the world in profound ways. Some scientists think those changes have launched a new epoch in Earth’s history: the Anthropocene.

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  6. Tech

    Synthetic trees could tap underground water in arid areas

    They also could also help coastal residents mine fresh water from salty sources.

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  7. Animals

    Tiny animals survive 24,000 years in suspended animation

    Tiny bdelloid rotifers awake from a 24,000-year slumber when freed from the Arctic permafrost.

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  8. Environment

    Wildfire smoke seeds the air with potentially dangerous microbes

    Studies now show that most wildfires don’t kill microbes. That’s fueling worries about what risks these smoke hitchhikers might pose to people.

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  9. Earth

    Greece’s Santorini volcano erupts more when the sea level drops

    Data showing this association go back at least 360,000 years.

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  10. Environment

    Warming cities may see more rain — and frequent flooding

    Scientists are seeking to understand why and how to mop up excess precipitation.

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  11. Environment

    Explainer: Urban heat islands and how to cool them

    Cities transform landscapes covered in plants to ones covered in heat-absorbing asphalt and concrete. But ways exist to cool these urban heat islands.

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  12. Environment

    ‘Zombie’ wildfires can reemerge after wintering underground

    Climate change may make these not-quite-dead blazes more common. Scientists are learning to predict where a zombie might emerge.

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