Search Results for: Bears

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6,875 results

6,875 results for: Bears

  1. Astronomy

    Balloon Sounds Out the Early Universe

    A balloon-borne experiment circling Antarctica has measured the curvature of the universe and revealed that it's perfectly flat.

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  2. Tech

    The Little Engines That Couldn’t

    Tired of grinding their gears, micromachine researchers turn to surface science.

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  3. Materials Science

    Materials with Memory

    Metal alloys and polymers that can remember a preprogrammed shape may literally reshape technologies ranging from warfare to medicine and car repair.

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  4. 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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  5. Health & Medicine

    Sobering Work

    Unraveling alcohol's effects on the developing brain.

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  6. 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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  7. Ecosystems

    Cryptic Invasion: Native reeds harbor aggressive alien

    A mild-mannered reed native to the United States is getting blamed for the mayhem caused by an evil twin.

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  8. Chemistry

    Delivering the Goods

    Experimental gene-delivery therapies generally use viruses to shuttle genetic material into cells, but some researchers are devising ways to avoid using the sometimes-risky viruses.

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  9. How the Butterfly Gets Its Spots

    The spots on a butterfly wing turn out to be unusually good model systems for a range of disciplines from genetics to behavioral ecology, offering biologists a chance to paint the really big picture of how evolution works.

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  10. Anthropology

    Evolution’s Surprise: Fossil find uproots our early ancestors

    Researchers announced the discovery of a nearly complete fossil skull, along with jaw fragments and isolated teeth, from the earliest known member of the human evolutionary family, which lived in central Africa between 7 million and 6 million years ago.

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  11. Red Snow, Green Snow

    It's truly spring when those last white drifts go technicolor as algae bloom in the snow.

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  12. Planetary Science

    Forgotten Planet

    Mercury: The solar system's inner frontier.

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