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E.g., 02/10/2016
E.g., 02/10/2016
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  • microscope image of plaques in a human artery
  • Uranus and Neptune
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  • Science Visualized

    Images probe artery-hardening plaques

    Collagen, best known as the key protein in skin, also protects against loose bits of plaque that can cause heart attacks. New images (below) of human arteries hardened by plaque illustrate the importance of collagen (green). The plaques (red and orange) in the left two micrographs are stable, while the plaques in the photos on the right are vulnerable to breaking away from the blood vessel...

    02/10/2016 - 08:00 Cells, Biomedicine
  • Feature

    Support grows for a return to ice giants Uranus and Neptune

    In the cold periphery of the solar system, two enigmatic sentinels saunter around the sun. One circuit along their vast orbits takes on the order of a century. Seasons are measured in decades. At such great distances from Earth, these worlds give up their secrets slowly. While every other planet in our solar system has been repeatedly poked and prodded by orbiters and landers, Neptune and...

    02/10/2016 - 06:30 Planetary Science
  • Science Ticker

    Cyanobacteria use their whole bodies as eyeballs

    After all those years of people looking into microscopes at bacteria, it turns out that some of the bacteria are (sort of) looking back.

    Synechocystisbacteria focus light in a roughly eyeball-like process, says Conrad Mullineaux of Queen Mary University of London.  Light shining through their spherical cells focuses on the opposite side,...

    02/09/2016 - 18:40 Microbes, Physiology, Microbiology
  • News in Brief

    Urban heat islands exist even in the Arctic

    TROMSØ, Norway — A novel form of the “urban heat island” effect might contribute to why the far north is warming faster than the rest of the globe, a study of five Arctic cities finds.

    Sunlight can heat dense building materials. When night falls, buildings will release some of their solar energy into the air. This helps explain why urban centers tend to be a few degrees...

    02/09/2016 - 15:00 Pollution, Climate
  • Feature

    Ocean's plastics offer a floating fortress to a mess of microbes

    Oceanfront property doesn’t come cheap. Except, perhaps, for some seafaring microbes.

    Steady streams of tiny plastic pieces making their way into the ocean give microbial squatters a place to take up residence. Each plastic home comes equipped with a solid surface to live on in an otherwise watery world. These floating synthetic dwellings and their microbial inhabitants have a name: the...

    02/09/2016 - 13:12 Earth, Oceans, Pollution, Ecosystems, Sustainability
  • Mystery Solved

    Plants trick bacteria into attacking too soon

    Plants protect themselves from bacterial assault with mystery compounds that interrupt the bacteria’s best laid plans. Now, researchers have finally identified one of those protective compounds.

    Rosmarinic acid is a plant’s secret weapon for disarming bacteria, researchers report in the Jan. 5 Science Signaling. Tino...

    02/09/2016 - 07:00 Agriculture, Microbiology
  • News in Brief

    Physicists find signs of four-neutron nucleus

    The suspected discovery of an atomic nucleus with four neutrons but no protons has physicists scratching their heads. If confirmed by further experiments, this “tetraneutron” would be the first example of an uncharged nucleus, something that many theorists say should not exist. “It would be something of a sensation,” says Peter Schuck, a nuclear theorist at the National Center for Scientific...

    02/08/2016 - 17:08 Particle Physics, Physics
  • Science Ticker

    This roach-inspired robot can wiggle through tight spaces

    View the video

    A new crevice-crawling robot takes after compressible cockroaches.

    Researchers at the University of California, Berkeley designed a palm-sized robot inspired by the American cockroach, Periplaneta americana. Thanks to the roach’s sturdy, segmented shell, a roughly 12 millimeter-tall roach can cruise through spaces only four millimeters...

    02/08/2016 - 15:00 Robotics, Animals
  • News in Brief

    Cancer drug’s usefulness against Alzheimer’s disputed

    A preliminary report from scientists at the biotech company Amgen Inc. questions a cancer drug’s ability to fight Alzheimer’s disease. In experiments described February 4 in F1000Research, bexarotene, a drug approved by the FDA to treat lymphoma, didn’t...

    02/08/2016 - 10:00 Neuroscience, Biomedicine, Health
  • News

    Don’t blame winter for that bleak mood

    Winter doesn’t deserve its dour reputation as the season of depression, scientists say.

    Rates of major depression, a psychiatric condition marked by intense sadness, hopelessness, insomnia and a general loss of interest or pleasure, don’t markedly change from one season to another among U.S. adults,...

    02/08/2016 - 07:00 Psychology, Mental Health