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  1. Humans

    Nobel Celebrations

    A firsthand account unveils the pageantry that surrounds the awarding of the Nobel prizes in Stockholm.

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  2. Astronomy

    The Hole Story

    New evidence suggests that supermassive black holes have an impact on the evolution of galaxies that goes far beyond their gravitational grasp.

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  3. Humans

    From the January 12, 1935, issue

    A Mayan figurine, star composition, and gene locations.

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  4. Humans

    Puzzle of the Week

    Eager to exercise your mind and join in a friendly puzzle-solving competition? Try the weekly challenge at the new PuzzleUp Web site, created by Emrehan Halici, a software and game developer in Turkey. Go to: http://www.puzzleup.com/

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  5. Health & Medicine

    Phage Attack: Antibacterial virus might suppress cholera

    Bacteria-attacking viruses that infect bacteria hold cholera bacteria in check throughout most of the year except during the rainy season when these viruses become diluted.

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  6. Animals

    Crow Tools: Hatched to putter

    The New Caledonian crow is the first vertebrate to be shown definitively to have an innate tendency to make and use tools, according to researchers who doubled as bird nannies.

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  7. Earth

    Living in a Fog: Secondhand smoke may dull kids’ wits

    Millions of U.S. children may have reading deficits because of exposure to secondhand tobacco smoke.

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  8. Health & Medicine

    Not to Your Health: New mechanism proposed for alcohol-related tumors

    New findings suggest that alcohol encourages blood vessels to invade tumors, supplying nutrients that promote tumor growth.

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  9. Hands-on Math Insights: Teachers’ mismatched gestures boost learning

    As teachers instruct a child, they typically use their hands as well as their voices, but only certain gestures pack a powerful educational punch.

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  10. 19504

    I was disappointed in news coverage of this dinosaur find in China. Science News and others ran an illustration with an obvious mistake. Unless the newly discovered mammal, Repenomamus giganticus, and its smaller cousin, Repenomamus robustus, were unique animals, they did not have legs that emerged from their sides giving them a sprawling, reptilian body […]

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  11. Paleontology

    Reptilian Repast: Ancient mammals preyed on young dinosaurs

    Two nearly complete sets of fossilized remains from 130-million-year-old rocks are revealing fresh details about the size and dietary habits of ancient mammals, hinting that some of these creatures were large enough to feast on small dinosaurs.

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  12. Math

    When Laziness Pays: Math explains how cooperation and cheating evolve

    Researchers have developed a mathematical model that helps explain how cooperation and cheating evolve among simple organisms.

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