Vol. 165 No. #17
Archive Issues Modal Example

More Stories from the April 24, 2004 issue

  1. Animals

    Male spiders amputate organs, run faster

    Tiny male spiders of a species common to the southeastern United States routinely remove one of their two oversize external sex organs, enabling them to run faster and longer.

  2. Planetary Science

    Cassini spies storms on Saturn

    Closing in on Saturn after a 7-year journey, the Cassini spacecraft has discovered two storms merging on the ringed planet, only the second times that scientists have observed such a phenomenon.

  3. Physics

    Particle breakdowns beat expectations

    A fresh analysis of 2002 accelerator data finds a third instance of a type of breakdown of subatomic kaons that's not supposed to happen so often, suggesting that shadowy, hypothetical particles predicted by a theory called supersymmetry may be influencing kaon behavior.

  4. Health & Medicine

    Gene ups oral-cancer risk for drinkers who smoke

    People who have a particular variant of a single gene are at a disproportionate risk of oral cancer if they both smoke and drink.

  5. Astronomy

    A galaxy that goes the distance?

    Aided by a cosmic magnifying glass, astronomers may have found the most distant galaxy known, a body that appears to reside 13.2 billion light-years from Earth.

  6. Tech

    Super-repellent surface switches on and off

    Nanotechnologists have created a remarkably effective liquid-repelling surface that can also become, at the flick of a switch, liquid-attracting.

  7. Physics

    Signs of new five-quark particle

    Physicists at a German particle collider unveiled evidence of a new five-quark particle.

  8. Earth

    Sea Change: Ocean report urges new policies

    To combat environmental degradation and encourage sustainable use of resources off the nation's shores, the U.S. government needs to double its investment in marine research, integrate management of coastal and inland ecosystems, restructure agencies that influence the oceans' health and productivity, and take other far-reaching steps, according to a commission created by Congress.

  9. Physics

    Photon Double Whammy: Careening electrons may rev up solar cells

    A newfound cue ball effect in nanometer-scale crystals of a semiconductor compound may lead to highly efficient solar cells made from such nanocrystals.

  10. Earth

    Lava Life: Hints of microbes in ancient ocean rocks

    Microscopic, carbon-lined tubes in lava that erupted onto the ocean floor about 3.5 billion years ago were etched by microbes, a number of signs suggest.

  11. Math

    Primal Progress: Pattern hunters spy order among prime numbers

    The population of prime numbers includes an infinite collection of arithmetic progressions.

  12. Health & Medicine

    Zapping Wayward Cells: Therapy sheds light on transplant complication

    Ultraviolet light can curb graft-versus-host disease, a common complication of bone marrow transplants, a study of mice shows.

  13. Materials Science

    Crafty Carriers: Armoring vesicles for more precise and reliable drug delivery

    Materials scientists are designing tough, microscopic drug-delivery vesicles that could reach their targets intact and release their cargoes on cue.

  14. Astronomy

    Puzzle on the Edge: The moon that isn’t there

    Contrary to predictions, Sedna, the most distant object known in the solar system, does not appear to have a moon.

  15. Animals

    Hooking the Gullible

    Research into fish behavior often reveals ways that bait designers can trick a fish into biting odd-looking lures, but angler appeal can also be an important marketing consideration.

  16. Math

    Math Lab

    Computers are starting to give mathematicians the lab instrument that they have been missing.

  17. Humans

    Letters from the April 24, 2004, issue of Science News

    Extreme makeover The observations in “Wrenching Findings: Homing in on dark energy” (SN: 2/28/04, p. 132: Wrenching Findings: Homing in on dark energy) are of stars and galaxies billions of light-years away and billions of years old. Has anyone ever thought about what the universe out there looks like today? Earl RosenwinkelDuluth, Minn. People have […]