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  • News in Brief

    Dose of extra oxygen revs up cancer-fighting immune cells

    Boosting oxygen in the air helped mice with cancer battle lung and breast tumors.Normal air contains 21 percent oxygen. Raising oxygen concentrations to 60 percent energized immune cells to shrink tumors in mice, researchers report in the March 4 Science Translational Medicine. About 40 percent of cancer-...
    03/04/2015 - 14:00 Cancer, Immune Science, Biomedicine
  • News

    Ancient jaw may hold clues to origins of human genus

    Researchers have discovered what they regard as the oldest known fossil from the human genus, Homo. But questions about the evolutionary status of the approximately 2.8-million-year-old lower jaw have already emerged.Found in 2013 resting atop eroding soil in Ethiopia’s Ledi-Geraru research area, the fossil jaw contains several signature Homo features, including small and...
    03/04/2015 - 13:00 Human Evolution, Anthropology, Ancestry
  • Wild Things

    Insects may undermine trees’ ability to store carbon

    Trees are often promoted as an important tool for combating climate change. That’s because trees take in carbon dioxide from the air and lock it away in wood and soil for years. But trees may not be as great of carbon sinks as we thought, a...
    03/04/2015 - 11:08 Animals, Climate
  • Mystery Solved

    Why lattes are less prone to spills than regular coffee

    Carrying a cup of joe can prove dangerous: Just a small jostle can send hot liquid flying. A latte comes with considerably less risk. Thank the bubbles.Alban Sauret of the French scientific research center CNRS in Aubervilliers and colleagues report...
    03/04/2015 - 08:00 Physics
  • Science Ticker

    How pigeons bob and weave through obstacles

    View the videoTo dodge obstacles, pigeons have to know when to hold ‘em and when to fold ‘em. By altering their wing posture, the birds can successfully navigate tight spots, researchers report March 2 in the Proceedings of the National Academy of the Sciences.Harvard University researchers filmed and...
    03/03/2015 - 15:52 Animals, Biophysics
  • News in Brief

    Volcanic lightning forges tiny glass balls from airborne ash

    Lightning bolts that flash and clash high above erupting volcanoes can forge flying ash into glass, new research finds. The mechanism could explain the origins of odd microscopic glass beads found embedded in ash deposits, the researchers report online February 27 in Geology.A volcanic eruption can kick...
    03/03/2015 - 14:20 Earth, Climate
  • News in Brief

    Hundreds of galaxies seen in a new 3-D view of the universe

    The Hubble Space Telescope has some competition. A telescope in Chile has captured a three-dimensional view of a part of the sky previously imaged by Hubble. The image stretches across cosmic time, revealing modern day galaxies as well as ones seen as they existed when the universe was less than a billion years old. A single observation from a new high-tech camera on the telescope captured not...
    03/03/2015 - 13:06 Astronomy
  • News

    Brain cells predict opponent’s move in game-playing monkeys

    Newly discovered brain cells in monkeys can predict another monkey’s actions in a cooperation game. If such brain cells also exist in humans, they may be important in social interactions that require calculating another person’s intentions.The brain cells were found in rhesus macaques playing a video game called the prisoner’s dilemma. The cells keep track of how other monkeys behaved in previous...
    03/03/2015 - 08:00 Neuroscience
  • Science Ticker

    Despite risks, vaccine delay requests are common

    Nearly all pediatricians and family physicians have encountered parents who want to delay their infants’ vaccinations, a study published March 2 in Pediatrics suggests.  A national survey of 534 doctors showed that in a typical month, 93 percent of doctors have interacted with parents who...
    03/02/2015 - 16:47 Health
  • Science Ticker

    Plant growth patterns changing on much of Earth’s surface

    Patterns in when and how much plants grow have changed markedly over the past 30 years, scientists report March 2 in Nature Climate Change.Researchers looked at satellite data of vegetation on the Earth’s surface from 1981 to 2012. They examined 21 markers of plant growth, including the dates when plants start sprouting and losing...
    03/02/2015 - 15:40 Plants, Climate