All Stories

  1. Earth

    Slow Turnover: Warming trend affects African ecosystem

    Over the past 90 years, rising water temperatures in Lake Tanganyika have led to dramatic losses of productivity among the microorganisms that form the base of the lake's food chain.

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  2. Astronomy

    Solar Terrain: Revealing the sun’s complex topography

    The sharpest images of the sun ever taken, released last week, show our stellar neighbor’s rugged surface in new and surprising detail.

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  3. Health & Medicine

    Prevention in a Pill? Baldness drug might avert prostate cancer

    The drug finasteride, given to alleviate baldness and prostate problems, might prevent some cases of prostate cancer.

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  4. Earth

    Germs Begone: New technology cleans dangerous water

    For a penny per liter, people in the developing world should be able to remove most pathogens and toxic pollutants from their home drinking water.

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  5. Animals

    African cicadas warm up before singing

    The first tests of temperature control in African cicadas have found species with a strategy that hogs energy but reduces the risk of predators.

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  6. Health & Medicine

    McDonald’s Cutback in Antibiotics Use Could Reduce Drug-Resistant Bacteria

    The fast-food chain McDonald’s announced on June 19 that it will stop its farms under contract from feeding chicken, cattle, and pigs certain antibiotics intended to accelerate the animals’ growth. That step might slow or reverse the rise of antibiotic-resistant bacteria that can infect people, scientists say. HAPPIER MEAL. Coming soon to a McDonald’s near […]

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  7. Earth

    Lead delays puberty

    Even low concentrations of lead in a girl's body may delay her reproductive maturation.

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  8. Calling out the cell undertakers

    Dying cells secrete chemicals that attract other cells that specialize in disposing of cellular corpses.

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  9. Paleontology

    Alaska in the ice age: Was it bluegrass country?

    At the height of the last ice age, northern portions of Alaska and the Yukon Territory were covered with an arid yet productive grassland that supported an abundance of large grazing mammals, fossils suggest.

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  10. Animals

    Life Without Sex

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

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  11. Humans

    From the June 24, 1933, issue

    LIGHTNING Lightning, most awesome of the spectacular forces of nature, has yielded some of its mystery to science. But not all. We no longer credit it, as did our ancestors, to an angry Zeus or an impetuous Thor. Since Ben Franklin flew his adventurous kites, nearly two centuries ago, we know it is “made of […]

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  12. Earth

    Meteorite Crater

    The Barringer Crater in Arizona is one of the more famous geological sites on Earth. This Web site recounts the history and science of the crater’s formation 50,000 years ago and provides information about its discovery, its purchase by D.M. Barringer, and its current status. Go to: http://www.barringercrater.com/

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