Search Results for: Geology

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7,845 results

7,845 results for: Geology

  1. Life

    Just warm enough

    Mammals may have evolved a characteristic body temperature to avoid fungal infections without burning too hot.

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  2. Humans

    Neandertals blasted out of existence, archaeologists propose

    An eruption may have wiped out Neandertals in Europe and western Asia, clearing the region for Stone Age Homo sapiens.

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  3. Chemistry

    Bacterium grows with arsenic

    A microbe appears to substitute a normally toxic element for a basic ingredient of life, raising intriguing questions about the limits of biochemistry.

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  4. Planetary Science

    Warmth in the dark age

    Lower reflectivity kept Earth from freezing under a fainter young sun.

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  5. Humans

    2012 budget offers pain and gain for R&D

    In a year of federal belt-tightening, the administration prioritizes basic research, education, clean energy and environmental science.

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  6. Building better can reduce catastrophic quake deaths

    Thanks to the planet’s exploding population, more than a billion housing units will be built during the next half century. Many of those will be in urban areas that are vulnerable to catastrophic earthquakes such as the magnitude-7 quake that killed more than 200,000 people in Haiti in January. Roger Bilham, a seismologist at the […]

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  7. A violent tail

    The MESSENGER spacecraft finds powerful magnetic storms on Mercury, along with signs of surprisingly recent volcanic activity.

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  8. Earth

    Feds up estimates of BP-spill rate

    At a news briefing on June 10, Marcia McNutt, who chairs the National Incident Command’s brain trust of experts calculating the likely release rate of the ongoing Gulf of Mexico oil spill, pegged the best available estimates at between 20,000 and more than 40,000 barrels per day.

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  9. Earth

    Asteroid impact could have stirred the ocean

    Model offers one explanation for sudden change in deep-ocean chemistry almost 2 billion years ago.

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  10. Book Review: Stories in Stone: Travels Through Urban Geology by David B. Williams

    Review by Sid Perkins.

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  11. Earth

    Scientists scramble to analyze Haiti quake

    Teams work to understand and model what could happen next.

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  12. Planetary Science

    Before the Mississippi, minerals show ancient rivers flowed west

    Michigan zircons uncover the path of an ancient river system across North America.

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