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  • Science Ticker

    Gastric bypass surgery changes gut microbes

    Weight loss surgery causes bacteria in the intestines to extract fewer calories from food, a new study suggests.

    Changes to the gut microbiome last at least nine years after Roux-en-Y gastric bypass or gastric banding surgery, researchers...

    08/05/2015 - 08:00 Microbiology, Biomedicine
  • News

    Quantum communication takes a new twist

    Communications of the future may be securely encoded in light that is twisted like fusilli pasta.

    A long-distance transmission of particles of light above the Vienna skyline demonstrates a new way of relaying information using the tricks of quantum physics. Austrian researchers exploited the twistiness of light to establish a delicate quantum connection called entanglement between pairs...

    08/05/2015 - 06:00 Quantum Physics
  • Science Ticker

    LED lights make moths easy targets for bats

    Energy-saving LED street lights are environmentally friendly, but they may not be moth-friendly. When lit by an LED's glow, the insects are less likely to perform dramatic dives to escape hungry bats, a new study shows.

    Researchers at the University of Bristol in England played recordings of bat hunting calls to unsuspecting wild moths. In the dark, 60 percent of moths dove toward the...

    08/04/2015 - 19:05 Animals, Ecosystems
  • Science Ticker

    Spicy food associated with longevity

    Spicy food in the diet seems to contribute to longevity, a study of thousands of people in a Chinese registry finds.

    Men who ate spicy food at least once a week were 10 percent less likely to die during the seven-year study period than were those with a more bland diet. Women had a mortality decrease of 12 to 22 percent during the study period with regular spicy food consumption, and...

    08/04/2015 - 18:30 Health
  • News in Brief

    Astrocytes help speed up brain’s messages

    A type of brain cell formerly known for its supporting role has landed a glamorous new job. Astrocytes, a type of glial cell known to feed, clean and guide the growth of their flashier nerve cell neighbors, also help nerve cells send electrical transmissions, scientists report in the Aug. 5 Journal of Neuroscience.

    ...

    08/04/2015 - 17:00 Neuroscience
  • News

    Cosmic threads may hide some of universe’s missing matter

    HONOLULU — Some people have trouble finding their keys; astronomers, meanwhile, have been having trouble locating half of the atoms in the universe. Fortunately, researchers have a good idea of where to look. The misplaced matter seems to have collected in cosmic filaments, hundreds of millions of light-years long, which connect galaxy clusters across the cosmos.

    Three...

    08/04/2015 - 16:56 Astronomy
  • Wild Things

    Don’t let Cecil the lion distract from the big conservation challenges

    Last week, the death of a lion named Cecil dominated the news and social media. Even before then, Cecil had been somewhat famous, for a lion. He resided in a national park, appeared in pictures and was the subject of scientific research. But...

    08/04/2015 - 16:11 Animals
  • News

    Ocean current simulations could narrow Flight 370 search

    A washed-up wing fragment near Madagascar could help narrow the search area for the Malaysia Airlines Flight 370 crash site, new ocean current simulations suggest.

    Leads have been few and far between since Flight 370 vanished over the South China Sea in March 2014. On July 29, searchers got a potential break. A roughly 2-meter-long section of a Boeing 777 wing, the same type of aircraft...

    08/04/2015 - 15:50 Oceans, Science & Society
  • News in Brief

    Map of Ceres’ surface shows surprises

    HONOLULU — Clumps of craters on Ceres hint at a surprising past for the dwarf planet. Whether that past involves hidden ice deposits, a devastating whack by another space rock or something else entirely is uncertain.

    “There is clearly something funky going on,” Simone Marchi of the Southwest Research Institute in Boulder, Colo., reported August 3 at a meeting of the...

    08/04/2015 - 15:34 Planetary Science
  • Science Ticker

    How Ethiopian highlanders adapted to breathe thin air

    At high altitudes, the reduced oxygen in the air makes some people develop a condition called hypoxia. But the thousands of people who live 3,500 meters above sea level in the Ethiopian highlands don’t seem to get sick. A key genetic adaptation may have helped them live for millenia at high altitudes, researchers report August 3...

    08/04/2015 - 13:26 Genetics, Physiology, Evolution