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  • News

    Ancient Mariners: Caves harbor view of early Egyptian sailors

    On Christmas Day last year, Kathryn Bard got an unusual gift.

    Working with her colleagues to remove sand from a hillside along Egypt's Red Sea coast, the Boston University archaeologist poked through a small opening that had appeared and felt . . . nothing. She had reached into the entrance to a human-made cave in which sailors stored their gear as many as 4,000 years ago....

    05/04/2005 - 12:50 Archaeology
  • News

    Microwavable Cancers: Heat plus radiation shrinks some tumors

    The idea of heating a tumor to make it more vulnerable to radiation treatment has had appeal for decades. But tests in the early 1990s yielded negative or inconsistent results. In Europe, the methods for this tricky procedure have improved since then and test results have shown promise. Still, the combination of procedures has been used sparingly in the United States.

    In a new U.S....

    05/04/2005 - 12:22 Biomedicine
  • News

    Mind the Gap: Inadequate monitoring at many U.S. volcanoes

    A report just released by the U.S. Geological Survey (USGS) ranks the threats posed by the nation's volcanoes, identifies gaps in monitoring at and around those peaks, and proposes a comprehensive early-warning system for volcanic unrest and eruptions.

    The United States and its territories are home to 169 volcanoes that are now erupting, have erupted recently, or became...

    05/04/2005 - 12:01 Earth
  • News

    Nanowaste: Predicting the environmental fate of buckyballs

    As companies gear up to make industrial quantities of nanomaterials, worries mount about the safety of these products should they end up contaminating the environment. A new study indicates that buckyballs, one of the most well-studied nanomaterials, undergo considerable changes in different aquatic environments. So, their effects probably will vary from place to place.

    A buckyball is...

    05/04/2005 - 11:29 Earth & Environment
  • News

    Long Live the Mammals: Antioxidant redirection extends mouse life span

    Cranking up the amount of antioxidants naturally produced in the body and directing those molecules to where they're needed can dramatically slow the aging process, according to a new study in mice. The finding adds credence to the controversial idea that antioxidants can extend life in people and other mammals.

    Negatively charged molecular fragments generated by normal metabolism can...

    05/04/2005 - 11:00
  • News

    Planetary Picture? Criteria for planethood cloud object's identity

    When is a Jupiterlike object a planet and when is it just a blob of gas? That's the question that astronomers are debating this week after two teams independently confirmed that a distant speck of light recorded a year ago is the first image of a planetary-size body beyond the solar system.

    Two to five times as massive as Jupiter, the body would seem to automatically qualify...

    05/04/2005 - 10:16 Astronomy
  • News

    Alive and Knocking: Glimpses of an ivory-billed legend

    A 4-second video released last week and reports of brief glimpses by seven observers have convinced many biologists and birders that the famed ivory-billed woodpecker has not gone extinct after all.

    The third-largest woodpecker in the world, measuring some 20 inches from crest tip to tail, this bird once ranged through the old-growth forests of the southeastern United States...

    05/04/2005 - 09:56 Animals
  • Letters to the Editor

    Letters from the May 7, 2005, issue of Science News

    Clearer yet

    "Weighing In on a Star: A stellar size limit" (SN: 3/12/05, p. 164) includes three images of the Arches cluster near the center of the Milky Way, each taken with a different telescope. I'd be interested to know what the three telescopes are.

    John McKeeBrunswick, Maine

    In the trio of progressively sharper (left to right) images, the leftmost one was taken...

    05/03/2005 - 16:04 Humans & Society
  • News

    Novel drug may take on lung cancer

    In several kinds of cancer, malignant cells display an excess of a specific type of surface receptor, which when stimulated causes unchecked growth of such cells (SN: 9/11/04, p. 164: Available to subscribers at An Exploitable Mutation: Defect might make some lung cancers treatable).

    Scientists now report that a novel agent bottles up this so-called epidermal growth factor receptor and...

    05/03/2005 - 12:50
  • News

    Anti-inflammatory, anticholesterol drugs vs. cancer

    From Anaheim, Calif., at a meeting of the American Association for Cancer Research

    Cholesterol-lowering drugs, especially when combined with anti-inflammatory medication, may inhibit some cancers, two studies suggest.

    Tapping into a database that tracks the health of more than 51,000 middle-aged and elderly men, researchers identified 2,074 who developed prostate cancer between...

    05/03/2005 - 12:28 Biomedicine