Earth

  1. Earth

    Lopsided lights

    Simultaneous snapshots reveal that northern and southern auroras aren’t always alike.

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  2. Earth

    A hundred new nukes?

    Here are some issues to contemplate while deciding whether to welcome the nuclear-power renaissance that Sen. Alexander has just proposed.

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  3. Earth

    Signs of ancient sea ice

    New analyses of Arctic seafloor sediments suggest floating ice debuted in the ocean at least 47.5 million years ago.

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  4. Earth

    Arctic images declassified

    High-res Arctic sea images should be declassified, says National Research Council.

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  5. Earth

    Bird deaths blamed on vitamin deficiency

    Shortage of thiamine may have been killing birds in the Baltic and possibly elsewhere for some 25 years.

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  6. Earth

    Erosion, on the down low

    Experiments show how microscopic fungi attack minerals to begin the erosion process.

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  7. Humans

    What’s in your bottled water?

    A congressional hearing found bottled-water quality is not regulated as strictly as tap water is.

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  8. Humans

    Court backs EPA on controlling airborne particles

    Upwind polluters can be held responsible for contributing to downwinders' violations of air-pollution standards.

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  9. Animals

    Megafish Sleuth: No Steve Irwin

    There's no reason a scientist can't be an action hero — even if his damsels in distress have fins.

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  10. Earth

    Monster stingrays: Field notes from a global wrangler

    A megafish biologist shares what he's learning about a rare freshwater species.

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  11. Health & Medicine

    Bad Breath

    New studies detail how the invisible particles that pollute the air can damage heart, lungs and genetic programming.

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  12. Earth

    New cyclone predictor

    Researchers link occasional sea-surface warming in central Pacific with more, stronger hurricanes in North Atlantic.

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