News

  1. Health & Medicine

    Ultrasound boosts drug delivery to tumors

    A beam of ultrasound can make the blood vessels that infiltrate cancerous growths leakier than normal.

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  2. Health & Medicine

    Weak appetite in elderly ties to hormone

    A hormone known to suppress appetite is more abundant in seniors than in young adults and has a greater effect in squelching hunger in elderly people.

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  3. Animals

    Unknown squids—with elbows—tease science

    Glimpses from around the world suggest that the ocean depths hold novel, long-armed squids that belong in no known family.

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  4. Earth

    Forest-soil fungi emit gases that harm ozone layer

    Laboratory tests reveal for the first time that certain types of common fungi can produce ozone-destroying methyl halide gases.

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  5. Astronauts’ sleep may get lost in space

    Two new studies indicate that astronauts experience changes in the body's circadian pacemaker that are associated with sleep problems.

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  6. Health & Medicine

    Mice reveal the off switch for inflammation

    Working with genetically engineered mice, scientists have identified a crucial natural mechanism that rodents use to shut down inflammation before it does harm.

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  7. Astronomy

    Did Space Rocks Deliver Sugar?

    Planetary scientists have for the first time detected sugar compounds in meteorites, bolstering the view that space rocks seeded the early Earth with ingredients essential for the development of life.

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  8. Health & Medicine

    Newfound flu protein may kill immune cells

    A dash of serendipity led to the discovery of a new protein, produced by most strains of the influenza A virus.

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  9. Animals

    Crows appear to make tools right-handedly

    A study of 3,700 leaf remnants from crows making tools suggests that the birds prefer to work "right-handed."

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  10. Materials Science

    Bonds make a sacrifice for tough bones

    Researchers report that easily broken bonds in collagen may help prevent bones from easily fracturing.

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  11. Winter depression may heed hormonal signal

    A biological signal of seasonal change, similar to that observed in many mammals, appears to trigger recurring cases of winter depression.

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  12. Tech

    Little lamp may set quantum tech aglow

    By reliably emitting just one photon when excited by just one voltage pulse, a sophisticated takeoff on a common class of tiny lamps called light-emitting diodes, or LEDs, may help usher in exotic technologies that rely on quantum mechanics, including quantum cryptography and quantum computers.

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