Search Results for: Geology

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7,846 results

7,846 results for: Geology

  1. Earth

    The Fires Below

    Underground coal fires help shape the landscape on many scales and in many ways, some transient and some long-lasting.

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  2. Earth

    Eye of the Tiger

    Recent research has upended a 130-year-old, previously unchallenged theory about how the semiprecious stone called tiger's-eye is formed.

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  3. Archaeology

    Early New World Settlers Rise in East

    New evidence supports the view that people occupied a site in coastal Virginia at least 15,000 years ago.

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  4. Earth

    Sulfur Studies: Early Earth’s air was oxygen-poor

    Analyses of ancient sulfide minerals and the modern organisms that create sulfides are giving scientists a better idea of what Earth's atmosphere and oceans may have been like billions of years ago.

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  5. Planetary Science

    Rocks on the ice

    Pristine fragments of a meteorite that fell January 18 in the frozen Yukon and that remained frozen until they were delivered to a NASA laboratory may reveal much about the earliest days of the solar system.

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  6. Humans

    From the January 7, 1933, issue

    ATOM BUILDING KEEPS STARS SHINING, SAYS A.A.A.S. HEAD The building up of other heavier atoms out of hydrogen stokes the internal heat of the stars, including the sun, Prof. Henry Norris Russell, Princeton University astronomer recently elected president of the American Association for the Advancement of Science, suggested in the Maiben lecture before the Association. […]

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  7. Evolution’s Death Row: Groups surviving mass extinction still go bust

    Groups of species may persist through major extinction events only to die off in the aftermath.

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  8. Animals

    Life Without Sex

    The search is on for creatures that have evolved for eons without sex.

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  9. Paleontology

    Learning from the Present

    New field studies of unfossilized bones, as well as databases full of information about current fossil excavations and previous fossil finds, are providing insights into how complete—or incomplete—Earth's fossil record may be.

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  10. Earth

    Shifting Sands

    Sand dunes can provide scientists with clues about ancient patterns of wind and precipitation.

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  11. Earth

    Tsunami! At Lake Tahoe?

    Surprised tourists could catch the ultimate wave.

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  12. Anthropology

    Drowned land holds clue to first Americans

    A map of a now-flooded region charts the path that Asians may have taken to first reach the Americas.

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