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  • News

    These fragile, futuristic batteries run longer with a little oil

    Batteries that use aluminum and oxygen normally live fast and die young. But a new design could help these high-energy devices endure.

    Aluminum-air batteries are promising candidates for a new generation of non-rechargeable batteries, because they’re super lightweight and compact. The batteries, however, aren’t widely used because their internal components quickly degrade each other. In...

    11/08/2018 - 14:00 Chemistry, Technology
  • News

    How a life-threatening allergic reaction can happen so fast

    Within minutes of biting into peanut-tainted food, people with a peanut allergy may find their pulse quickening, blood pressure plummeting and throat closing up. They’re experiencing a rapid and sometimes fatal allergic reaction called anaphylaxis.

    New research in mice explains how even a small amount of an allergen can quickly trigger such a strong, full-body reaction. The culprit is a...

    11/08/2018 - 14:00 Immune Science, Health
  • News in Brief

    The number of calories you burn while resting depends on the time of day

    Timing is everything. Even how many calories a person burns while at rest depends on the hour.

    People burn about 129 more calories when resting in the afternoon and evening than in the early morning. But morning is better for burning carbohydrates, while fats are more likely to be burned in the evening, researchers report November 8 in Current Biology. The findings add to evidence that...

    11/08/2018 - 11:00 Physiology
  • News in Brief

    A new drug may boost dwindling treatment options for gonorrhea

    Gonorrhea is a wily foe. But doctors may soon have another drug to fight the sexually transmitted infection that’s become resistant to nearly every antibiotic thrown its way. In clinical trials, a new antibiotic was effective at stopping the bacteria that causes the disease.

    A single oral dose of the drug, called zoliflodacin, cured 96 percent of people who had gonorrhea infections in...

    11/07/2018 - 17:00 Health, Clinical Trials
  • News in Brief

    Marijuana may change the decision-making part of teen brains

    SAN DIEGO — Marijuana use during teenage years may change the brain in key decision-making areas, a study in rats suggests.

    “Adolescence is a dangerous time to be insulting the brain, particularly with drugs of abuse,” study coauthor Eliza Jacobs-Brichford said November 7 at the annual meeting of the Society for Neuroscience.

    Jacobs-Brichford and colleagues gave adolescent male and...

    11/07/2018 - 16:05 Neuroscience
  • News

    Like Europe, Borneo hosted Stone Age cave artists

    Discoveries on the island of Borneo illustrate that cave art emerged in Southeast Asia as early as in Western Europe, and with comparable complexity, researchers say.

    A limestone cave in eastern Borneo features a reddish-orange painting of a horned animal, possibly a type of wild cattle that may have been found on the island at the time. The painting dates to at least 40,000 years ago,...

    11/07/2018 - 13:00 Archaeology, Human Evolution
  • 50 years ago, atomic testing created otter refugees

    Sea otters restocked in old home

    When the [Atomic Energy Commission] first cast its eye on the island of Amchitka as a possible site for the testing of underground nuclear explosions, howls of anguish went up; the island is part of the Aleutians National Wildlife Refuge, created to preserve the colonies of nesting birds and some 2,500 sea otters that live there…— Science News, ...

    11/07/2018 - 11:30 Animals
  • News in Brief

    Bizarre metals may help unlock mysteries of how Earth’s magnetic field forms

    Weird materials called Weyl metals might reveal the secrets of how Earth gets its magnetic field.

    The substances could generate a dynamo effect, the process by which a swirling, electrically conductive material creates a magnetic field, a team of scientists reports in the Oct. 26 Physical Review Letters.

    Dynamos are common in the universe, producing the magnetic fields of the Earth...

    11/07/2018 - 06:00 Condensed Matter, Earth
  • News in Brief

    A lack of sleep can induce anxiety

    SAN DIEGO — A sleepless night can leave the brain spinning with anxiety the next day.

    In healthy adults, overnight sleep deprivation triggered anxiety the next morning, along with altered brain activity patterns, scientists reported November 4 at the annual meeting of the Society for Neuroscience.

    People with anxiety disorders often have trouble sleeping. The new results uncover...

    11/06/2018 - 11:51 Neuroscience
  • Reviews & Previews

    ‘End of the Megafauna’ examines why so many giant Ice Age animals went extinct

    End of the MegafaunaRoss D.E. MacPhee and Peter Schouten (illustrator)W.W. Norton & Co., $35

    Today’s land animals are a bunch of runts compared with creatures from the not-too-distant past. Beasts as big as elephants, gorillas and bears were once much more common around the world. Then, seemingly suddenly, hundreds of big species, including the woolly mammoth, the giant ground...

    11/06/2018 - 09:00 Paleontology, Animals, Climate