Search Results for: Geology

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7,845 results

7,845 results for: Geology

  1. Earth

    West Coast Shimmy: Smack from space triggered landslides along Pacific Coast

    Scientists say they've found the first evidence along the Pacific Coast of massive landslides triggered by the impact from space 65 million years ago that's suspected to have wiped out the dinosaurs.

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  2. Earth

    Gasoline additive’s going, but far from gone

    As the federal government proposes phasing out the gasoline additive MTBE, scientists explore ways to remove this potential carcinogen from drinking-water supplies that it has tainted throughout the nation.

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  3. Planetary Science

    Tryst in space: Craft, asteroid rendezvous

    On Valentine's Day, the NEAR spacecraft cozied up to the asteroid 433 Eros, becoming the first craft to orbit a tiny body.

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  4. Earth

    DDT treatment turns male fish into mothers

    Injecting into fish eggs an estrogen-mimicking form of the pesticide DDT transforms genetically male medaka fish into apparent females able to lay eggs that produce young.

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  5. From the February 27, 1932, issue

    PUSSY WILLOW Florists shops have long been offering big, beautiful, and expensive wands of pussy willows. But now the willow trees and bushes out of doors are putting forth their own offerings: smaller catkins, perhaps, but with the authentic tang of the wild about them. Harmless, charming, furry wild kittens, beloved of children everywhere! Pussy […]

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  6. Planetary Science

    Martian leaks: Hints of present-day water

    In some of the coldest regions on Mars, water appears to have recently gushed from just beneath the surface, running down crater walls and steep valleys.

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  7. Earth

    Mangled microfossils may mark impact sites

    Scientists studying sediment cores drilled in eastern Virginia say they’ve possibly identified a new clue to the locations of ancient, hidden impact craters: Just look for broken or twisted microbial fossils.

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  8. Animals

    New frog-killing disease may not be so new

    The skin disease that savaged amphibians in remote wildernesses in the 1990s has been linked to outbreaks in the 1970s.

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  9. Planetary Science

    Forgotten Planet

    Mercury: The solar system's inner frontier.

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  10. Chemistry

    Where the Gems Are

    By using a novel tool to figure out an emerald’s oxygen-isotope ratio, gemologists can now determine which mine the precious stone came from and, possibly, gain insights into the formation and history of these coveted gems.

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  11. Materials Science

    Gems of War

    While international bodies grapple with regulatory schemes to stem the diamond trade that funds ongoing civil conflicts in African countries, scientists are attempting to develop methods for identifying gems from conflict zones.

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  12. Earth

    More Waters Test Positive for Drugs

    Traces of drugs, excreted by people and livestock, pollute surface and ground waters in the United States, as had already been confirmed in Europe.

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