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Your search has returned 7 articles:
  • Feature

    Can you hear me now?

    The Earth is going silent. Digital television signals delivered by cable and satellite are quickly replacing analog broadcasts and reducing the number and power of radio waves leaking into space. For viewers at home, it means more channels and pictures of unsurpassed clarity. But for scientists seeking signs of advanced civilizations beyond the solar system, this sudden radio silence makes...

    04/09/2010 - 16:30 Astronomy
  • Feature

    Darwin's Evolution

    Charles Darwin was born into a world that today’s scientists wouldn’t recognize.

    When baby Darwin arrived on February 12, 1809, modern science was also in its infancy. Dalton had just recently articulated the modern theory of the chemical atom, but nobody had any idea what atoms were really like. Physicists had not yet heard of the conservation of energy or any other...

    01/16/2009 - 21:20 Evolution, Animals
  • News

    Machu Picchu’s far-flung residents

    High in Peru’s Andes, the skeletons of people buried at the famous Inca site of Machu Picchu tell a tale of displacement and devoted service. A new chemical analysis of these bones supports the previously postulated idea that Inca kings used members of a special class of royal retainers from disparate parts of the empire to maintain and operate the site, which served as a royal estate.

    ...

    09/30/2008 - 13:21 Humans & Society
  • Feature

    Change Without Change

    Fourscore and seven years ago, a nonprofit organization called Science Service began providing dispatches to newspapers on news from the world of science. The following year, by popular demand, some of those dispatches were collected and distributed weekly to a wider audience, in the form of typewritten, mimeographed pages carrying the label Science News-Letter.

    Four years later — on...

    04/24/2008 - 19:07 Humans & Society
  • Feature

    Nurturing Our Microbes

    Each of us is a metropolis. Bustling about in everyone's body are tens of trillions of microbes. Some are descended from starter populations provided by mom during birth. Additional bacteria, yeasts, and other life forms hitchhike in with foods. By age 3, everyone's gut hosts a fairly stable, yet diverse, ecosystem.

    Most of the tiny stowaways hide out in the...

    02/26/2008 - 12:45 Biomedicine
  • Feature

    Saving Sturgeon

    On a fine spring day alongside a Wisconsin river, several biologists wrestle a muscular, 120-pound fish onto her back and straddle her. The moves wouldn't be out of place in a rodeo. As the team restrains her, one member massages her swollen belly, working her eggs out of a release vent and into a plastic pail. The late-April scene occurs as, throughout the northern Midwest, water...

    02/27/2006 - 12:50 Ecology
  • Feature

    Science News Books

    09/19/1998 - 00:00