Earth

  1. aerial view of a large crater in Wyoming
    Planetary Science

    An ancient impact on Earth led to a cascade of cratering

    For the first time, scientists have discovered clusters of craters on Earth that were formed by the impacts of material thrown out of a larger crater.

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  2. aerial photo of a U.S. Coast Guard boat collecting spilled oil from Deepwater Horizon
    Oceans

    Sunlight helps clean up oil spills in the ocean more than previously thought

    Solar radiation dissolved as much as 17 percent of the surface oil slick spilled after the 2010 Deepwater Horizon explosion, a new study suggests.

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  3. columns of freshwater ice forming, spikes, scallops and pinnacles
    Physics

    Freshwater ice can melt into scallops and spikes

    Ice submerged in liquid water can melt into three different shapes, depending on the water’s temperature.

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  4. illustration of Earth's core structure showing the mantle in read, the outer core in yellow, and the inner core as a yellow sphere
    Earth

    Weird ‘superionic’ matter could make up Earth’s inner core

    Computer simulations suggest that matter that behaves like a mash-up of solid and liquid could explain oddities of Earth’s center.

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  5. a group of Arctic sponges
    Animals

    Deep-sea Arctic sponges feed on fossilized organisms to survive

    Slow-moving sponges, living deep in the Arctic Ocean where no currents deliver food, scavenge a carpet of long-dead critters.

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  6. methane fire
    Climate

    Satellites have located the world’s methane ‘ultra-emitters’

    Plugging leaks from methane ultra-emitters would make a dent in greenhouse gas emissions — and be cost-effective for those countries, scientists say.

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  7. illustration of Earth showing the Blob in the eastern Pacific Ocean
    Oceans

    The past’s extreme ocean heat waves are now the new normal

    Marine heat waves that were rare more than a century ago now routinely occur in more than half of global ocean, suggesting we’ve hit a “point of no return.”

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  8. image of a city street scene
    Tech

    Materials of the last century shaped modern life, but at a price

    From our homes and cities to our electronics and clothing, the stuff of daily life is dramatically different from decades ago.

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  9. image of researchers crouched on the ice with snowmobiles
    Planetary Science

    Machine learning points to prime places in Antarctica to find meteorites

    Using data on how ice moves across Antarctica, researchers identified more than 600 spots where space rocks may gather on the southern continent.

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  10. Satellite image of the Hunga-Tonga-Hunga-Ha'apai volcano eruption
    Earth

    What the Tonga volcano’s past tells us about what to expect next

    The January 15 eruption of a Tongan volcano triggered atmospheric shock waves and a rare volcanic tsunami; its history suggests it may not be done.

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  11. a kayaker paddles down a street as it rains in Old Town Alexandria, Virginia
    Climate

    Intense drought or flash floods can shock the global economy

    Rainfall extremes have powerful impacts on the global economy, affecting the manufacturing and services sectors more than agriculture.

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  12. A pyroclastic flow, or an avalanche of gas, ash and rock, flowing down a volcano
    Earth

    Volcanic avalanches of rock and gas may be more destructive than previously thought

    Pressures within pyroclastic flows may be as much as three times as great as observations had suggested.

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