Earth

  1. Tech

    Watching Earth for 25 years

    The Landsat 5 satellite launched in 1984 with a mission to orbit and image Earth's surface for three years. Still in orbit, the satellite has continuously documented changes in landscape.

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  2. Agriculture

    Gut bacteria ally with Bt

    A new study finds that a particular microbe makes caterpillars susceptible to the insecticide.

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  3. Physics

    Science Stimulus

    Researchers look to the new administration to bring fresh perspectives to health, energy, climate policy and science funding.

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  4. Climate

    Obama’s budget would boost science

    Featured blog: Here's a preview of what science programs the Obama administration plans to push in the coming year's federal budget.

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  5. Animals

    Climate change discourages second families

    Birds out of sync with local baby food supply of caterpillars aren’t nesting a second time.

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  6. Tech

    Catalyst knocks out a smog maker

    Unique system could help truckers meet new emissions standards.

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  7. Agriculture

    Where do you eat?

    Here's proof that we spend too much time mindlessly consuming food.

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  8. Climate

    Hot carbon storage

    New field studies show Africa’s tropical forests have stored carbon in recent decades.

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  9. Astronomy

    A green visitor makes its approach

    Comet Lulin, which passes closest to Earth on February 24, may be a sight for sore eyes.

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  10. Agriculture

    Predators zoom in on lice-infested salmon

    New research reveals another impact of fish farming on wild stocks.

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  11. Humans

    AAAS: Climate-friendly fish

    Many intangibles determine how big — or small — the carbon footprint is of that fish you're thinking about eating.

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  12. Health & Medicine

    MRSA has its day in the sun

    Beachgoers may be exposed to antibiotic-resistant microbe strain in sea and sand, but there appears to be no link to infection.

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