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E.g., 10/27/2016
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  • News in Brief

    Climate change shifts how long ants hang on to coveted real estate

    Heating small patches of forest shows how climate warming might change the winner-loser dynamics as species struggle for control of prize territories. And such shifts in control could have wide-ranging effects on ecosystems.

    The species are cavity-nesting ants in eastern North America. Normally, communities of these ant species go through frequent turnovers in control of nest sites. But...

    10/26/2016 - 16:04 Climate, Ecology, Animals
  • News

    HIV came to NYC at least a decade before virus ID’d

    A genetic study of HIV viruses from the 1970s may finally clear the name of a man long identified as the source of the AIDS epidemic in the United States. HIV came to New York City between 1969 and 1973, long before the man known as Patient Zero became infected, researchers report October 26 in Nature.

    Using techniques developed to decipher badly degraded ancient DNA from fossils,...

    10/26/2016 - 13:06 Genetics, Microbiology, Science & Society
  • News

    ‘Time crystal’ created in lab

    It may sound like science fiction, but it’s not: Scientists have created the first time crystal, using a chain of ions. Just as a standard crystal repeats in a regular spatial pattern, a time crystal repeats in time, returning to a similar configuration at regular intervals.

    “This is a remarkable experiment,” says physicist Chetan Nayak of Microsoft Station Q at the University of...

    10/26/2016 - 07:00 Quantum Physics
  • News

    Training for parents may lessen some autism symptoms in kids

    Training parents to better communicate with their children with autism spectrum disorder may lead to long-lasting improvements in certain symptoms, scientists report online in the Oct. 25 Lancet.

    The results are “very encouraging,” because they show long-term benefits for a relatively low-intensity treatment — one that’s delivered by parents, says clinical psychologist Geraldine Dawson,...

    10/25/2016 - 18:30 Health, Psychology
  • Wild Things

    With climate change, grizzly bears may hibernate less

    Rocky Mountain hikers might need to start packing more bear spray: Climate change may reduce the time that grizzly bears spend in hibernation — leaving them more time to scare the crap out of any humans wandering in their territory.

    Scientists aren’t really concerned about bear hibernation because of unwary hikers, of course. It’s because hibernation is an important time of year for a...

    10/25/2016 - 13:00 Animals
  • News

    Wanted: New ways to chill air conditioners, fridges

    The hunt is on for chemicals to keep both you and the planet cool.

    A new agreement will soon begin phasing out the powerful greenhouse gases currently used in air conditioners, refrigerators and insulating foams. These gases, called hydrofluorocarbons, or HFCs, can cause hundreds of times more global warming per molecule than carbon dioxide. The phaseout, announced by world leaders on...

    10/25/2016 - 09:00 Climate, Chemistry, Science & Society
  • Science Ticker

    Two unseen moons may circle Uranus

    Two more teeny moons might be lurking around Uranus, in addition to the 27 we already know about. Fluctuations in the density of two of the planet’s dark rings, seen in radio data from the 1986 flyby of the Voyager 2 spacecraft, could be caused by unseen moonlets, astronomers Robert Chancia and Matthew Hedman, both at the University of Idaho in Moscow, report online October 9 at

    10/25/2016 - 07:00 Planetary Science
  • News

    Latest dark matter searches leave scientists empty-handed

    Scientists have lost their latest round of hide-and-seek with dark matter, but they’re not out of the game.

    Despite overwhelming evidence that an exotic form of matter lurks unseen in the cosmos, decades of searches have failed to definitively detect a single particle of dark matter. While some scientists continue down the road of increasingly larger detectors designed to catch the...

    10/25/2016 - 05:30 Particle Physics
  • News

    Frequent liars show less activity in key brain structure

    When small lies snowball into blizzards of deception, the brain becomes numb to dishonesty. As people tell more and bigger lies, certain brain areas respond less to the whoppers, scientists report online October 24 in Nature Neuroscience. The results might help explain how small transgressions can ultimately set pants aflame.

    The findings “have big implications for how lying can develop...

    10/24/2016 - 16:43 Neuroscience, Science & Society
  • News

    Physicists find atomic nucleus with a ‘bubble’ in the middle

    Scientists have found the first experimental evidence that an atomic nucleus can harbor bubbles.

    The unstable isotope silicon-34 has a bubblelike center with a paucity of protons, scientists report October 24 in Nature Physics. This unusual “bubble nucleus” could help scientists understand how heavy elements are born in the universe, and help scientists find new, ultraheavy stable...

    10/24/2016 - 11:00 Physics