Earth

  1. Earth

    Mass movement

    Two satellites designed to note small changes in Earth's gravitational field detected effects of the magnitude 9.3 earthquake that occurred west of Sumatra on Dec. 26, 2004.

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  2. Earth

    Gunning for the Gut: Tiny particles might fight invasive zebra mussels

    By modifying a technique used to flavor foods, researchers have made a substance that poisons the zebra mussel.

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  3. Earth

    Estimating a temblor’s strength on the fly

    New analyses of ground motions caused by large earthquakes suggest that it may be possible to estimate the full magnitude of such quakes immediately after they start rumbling.

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  4. Earth

    Beyond the ABC’s: North Atlantic posts record hurricane season

    The 2005 hurricane season in the North Atlantic shattered a number of records, including several that were decades old.

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  5. Earth

    Satellite makes finest map yet of Antarctica

    Using data gathered by a satellite launched almost 3 years ago, scientists have assembled the most comprehensive high-resolution map of Antarctica that's ever been made.

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  6. Earth

    Where steel-belted radials go to die

    A new technique for analyzing satellite images may enable researchers to easily identify sites where large numbers of used tires have been dumped.

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  7. Earth

    Ozone hole might not recover until the year 2065

    The ozone-free zone that develops high in the atmosphere over Antarctica each summer as the result of the presence of chlorine- and bromine-containing chemicals may not heal until 15 years later than previously projected.

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  8. Earth

    Lab tests hint at where xenon hides out

    Results of recent experiments in which scientists squeezed a mixture of xenon and powdered quartz at high temperatures and pressures may explain why the gas is found at relatively low concentrations in the atmosphere.

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  9. Earth

    TB Dilemma: Badger refugees complicate culling

    Two new analyses bring an ironic twist to the heated debate over whether badgers in Britain should be killed to prevent them from spreading tuberculosis among cattle.

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  10. Earth

    Glacial Change: Greenland’s ice loss doubled in 2005

    A host of observations suggests that Greenland's ice sheet diminished this year at a rate more than twice that seen just a few years ago.

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  11. Earth

    Microbe polishes off pollutant

    Researchers have determined how long a pesticide residue would remain in the environment if the microbe Pseudomonas pavonaceae didn't metabolize it.

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  12. Earth

    Changes in the Air

    Changes in the atmospheric concentration of oxygen through geologic time, some gradual and some drastic, have strongly shaped evolution among many types of creatures.

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