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E.g., 01/22/2018
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  • News

    The secret to icky, sticky bacterial biofilms lies in the microbes’ cellulose

    To build resilient colonies, bacteria make a surprising tweak to a common substance found in cells.

    A  biochemical addition to the cellulose produced by E. coli and other species of bacteria lets them create colonies that are resistant to disruption, researchers report in the Jan. 19 Science. Called biofilms, these microbial colonies can form on medical devices or inside the body,...

    01/18/2018 - 14:31 Microbes, Chemistry
  • News

    Hunter-gatherer lifestyle could help explain superior ability to ID smells

    Smell has a reputation as a second-rate human sense. But that assumption stinks once hunter-gatherers enter the picture.

    Semaq Beri hunter-gatherers, who live in tropical forests on the eastern side of the Malay Peninsula in Southeast Asia, name various odors as easily as they name colors, say psycholinguist Asifa Majid and linguist Nicole Kruspe. Yet Semelai rice farmers, who live in...

    01/18/2018 - 12:00 Anthropology, Genetics
  • News

    The mystery of vanishing honeybees is still not definitively solved

    It was one of the flashiest mysteries in the news about a decade ago — honeybee workers were vanishing fast for no clear reason. To this day, that puzzle has never been entirely solved, researchers acknowledge.

    And maybe it never will be. Colony collapse disorder, or CCD, as the sudden mass honeybee losses were called, has faded in recent years as mysteriously as it began. It’s possible...

    01/17/2018 - 13:42 Animals, Agriculture, Science & Society
  • News in Brief

    Spaceships could use blinking dead stars to chart their way

    OXON HILL, Md. — Future spacecraft could navigate by the light of dead stars.

    Using only the timing of radiation bursts from pulsating stellar corpses, an experiment on the International Space Station was able to pinpoint its location in space in a first-ever demonstration. The technique operates like a stellar version of GPS, researchers with the Station Explorer for X-ray Timing and...

    01/12/2018 - 17:15 Astronomy
  • News

    Trio of dead stars upholds a key part of Einstein’s theory of gravity

    OXON HILL, Md. — Observations of a trio of dead stars have confirmed that a foundation of Einstein’s gravitational theory holds even for ultradense objects with strong gravitational fields.

    The complex orbital dance of the three former stars conforms to a rule known as the strong equivalence principle, researchers reported January 10 at a meeting of the American Astronomical Society....

    01/12/2018 - 16:19 Astronomy, Physics
  • News

    Pollution is endangering the future of astronomy

    OXON HILL, Md. — Even as technological advances allow astronomers to peer more deeply into the cosmos than ever before, new technologies also have the potential to create blinding pollution.

    Three sources of pollution — space debris, radio interference and light pollution — already are particularly worrisome. And the situation is getting worse. In the next two decades, as many as 20,000...

    01/12/2018 - 13:27 Astronomy, Pollution, Technology
  • Science Ticker

    See a 360-degree visualization of the center of the Milky Way

    View the video

    OXON HILL, Md. — Ever wonder what it would be like to sit at the center of the Milky Way and watch the galaxy swirl by? A video debuted in a January 10 news conference at the American Astronomical Society Meeting provides a glimpse.

    The 360-degree-simulation, made with data from several telescopes, including NASA's Chandra X-ray Observatory and the European Southern...

    01/12/2018 - 06:00 Astronomy
  • News

    Not all strep infections are alike and it may have nothing to do with you

    One person infected with strep bacteria might get a painful sore throat; another might face a life-threatening blood infection. Now, scientists are trying to pin down why.

    Variation between individuals’ immune systems may not be entirely to blame. Instead, extra genes picked up by some pathogens can cause different strains to have wildly different effects on the immune system, even in...

    01/11/2018 - 14:40 Health, Genetics, Immune Science
  • News in Brief

    Protein helps old blood age the brains of young mice

    Old blood can prematurely age the brains of young mice, and scientists may now be closer to understanding how. A protein located in the cells that form a barrier between the brain and blood could be partly to blame, experiments on mice suggest.  

    If something similar happens in humans, scientists say, methods for countering the protein may hold promise for treating age-related brain...

    01/11/2018 - 07:00 Neuroscience
  • News

    Fast radio bursts may be from a neutron star orbiting a black hole

    OXON HILL, Md. — Fast radio bursts could come from a turbulent home. At least one source of these bright, brief blasts of radio energy may be a young neutron star assisted by a nearby massive black hole, new research suggests.

    “The biggest mystery around fast radio bursts is how such powerful and short-duration bursts are emitted,” says astronomer Daniele Michilli of the University of...

    01/10/2018 - 13:42 Astronomy