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  1. Health & Medicine

    Protein Repair: New compounds may help cells fight off cancer

    Researchers have identified a compound that enables even defective p53 proteins to initiate anticancer chain reactions.

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  2. Copy Crab: DNA confirms that crab forms have several origins

    New genetic evidence suggests that crabs aren't all close relatives and their characteristic shape evolved independently on numerous occasions.

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  3. Materials Science

    Thin Jet Flies Two for One: Double streams yield sheathed nanoballs, fibers

    Researchers have used powerful electric fields to stretch liquids into ultrathin jets in which a stream of one liquid encloses the stream of another.

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  4. Animals

    Honey-Scented Elephants: Young males’ faces drip sweet signals

    An Asian bull elephant just reaching maturity secretes a liquid from glands on its face that smells like honey.

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  5. Health & Medicine

    Broken Weapon: Mutation disarms HIV-fighting gene

    A gene that once produced a small protein able to prevent HIV from infecting cells now lies unusable in the human genome.

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  6. Astronomy

    Ambitious Mission: Hubble slated to get one heckuva tune-up

    If all goes according to plan, astronauts aboard the space shuttle Columbia will embark on the fourth and most technically challenging mission to replace damaged parts and install new detectors on the Hubble Space Telescope.

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  7. 19052

    The Dutch researchers featured in this article seem to have discovered something that has been known for a long time. They conclude that the people who make the best recovery from loss are those who “cite mainly positive feelings” about the deceased. Jews, who are among the human race’s experts in recovering from losses, have […]

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  8. Good Grief: Bereaved adjust well without airing emotion

    Among bereaved spouses tracked for up to 2 years after their partners' death, those who often talked with others and briefly wrote in diaries about their emotions fared no better than their tight-lipped, unexpressive counterparts.

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  9. 18994

    There is another mechanism besides muscle that gives energy to running and hopping animals. It enables such animals as kangaroos to run faster than their muscles alone can take them. What happens is the tendons act as springs that stretch and then snap back. There is no reason to think that a large and heavy […]

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  10. Paleontology

    No Olympian: Analysis hints T. rex ran slowly, if at all

    Tyrannosaurus rex, a bipedal meat eater considered by many to be the most fearsome dinosaur of its day, may not have been the swift Jeep-chaser portrayed by Hollywood.

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  11. Health & Medicine

    More good news about chocolate

    The Kuna people of Central America appear to keep their blood pressure down by drinking cocoa rich in chemicals called flavanols.

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  12. Chemistry

    Wheat protein smooths ice cream

    Proteins extracted from winter wheat keep ice cream smooth by preventing ice crystals from growing.

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