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  • Feature

    The long and winding Colorado

    Standing on a mesa high above the town of Rifle, Colo., Andres Aslan is having a hard time staying quiet. The lanky geologist from nearby Colorado Mesa University normally speaks in a low-key professorial drone. But here, looking down at a sprawling river valley blazing with autumnal cottonwoods, his enthusiasm cranks up his volume. “This could be it,” says Aslan, gesticulating wildly. “This...

    01/10/2014 - 14:00 Earth, Planetary Science
  • Math Trek

    Unknotting knot theory

    Sometimes, a simple, even childish question turns out to be connected to the deepest secrets of the universe. Here’s one: How many different ways can you tie your shoelaces?Mathematicians have been puzzling over that question for a century or two, and the main thing they’ve discovered is that the question is really, really hard. In the last decade, though, they’ve developed some powerful new...

    10/31/2008 - 16:19 Numbers
  • Feature

    Science News of the Year 2005

    Science News of Yesteryear

    Anthropology & Archaeology

    Astronomy

    Behavior

    Biomedicine

    Botany & Zoology

    Cell & Molecular Biology

    Chemistry

    ...
    12/20/2005 - 03:53 Humans & Society
  • Feature

    Digital Cells

    Imagine a future in which a single drop of water holds a veritable army of living robots; in which people download software updates not for their computers, but for their bacteria; and in which specially programmed cells course through a person's arteries, monitoring blood sugar concentrations and keeping an eye out for cholesterol buildups.

    These...

    04/21/2003 - 10:56 Technology
  • Feature

    The Social Net

    Ten years ago, computer aficionados had the Internet pretty much to themselves. Today, their electronic playground has become a grand, weird, unpredictable social experiment. About half of U.S. households now have Internet access, although only 5 percent were connected in 1995. Europe and many other parts of the world also contain mushrooming numbers of Net users.

    ...
    04/30/2002 - 13:14 Other
  • Feature

    Biology

    08/21/1999 - 00:00
  • Feature

    Science News of the Year

    12/21/1996 - 00:00
  • Feature

    Cold Facts of Life

    04/24/1993 - 00:00