• Antarctica: Return of the Weddell Polynya supports Kiel Climate Model

    Currently, winter has still a firm grip on Antarctica. At this time of the year, the Weddell Sea usually is covered with a thick layer of sea ice. In spite of the icy temperatures in the region, satellite images depict a large ice-free area in the middle of the ice cover. The area of the hole in the ice is larger than The Netherlands and it fascinates climate and polar researchers worldwide. Scientists from the GEOMAR Helmholtz Centre for Ocean Research Kiel are closely monitoring the developments. “For us this ice-free area is an important new data point which we can use to validate our climate models. Its occurrence after several decades also confirms our previous calculations," says Dr. Torge Martin, meteorologist and climate modeler in the GEOMAR Research Division "Oceans Circulation and Climate Dynamics".

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  • NASA Sees a Weaker Hurricane Lee Headed to the U.K.

    NASA and NOAA satellite imagery show Hurricane Lee has been on a weakening trend as wind shear is battering the storm. The National Hurricane Center expects Lee to weaken quickly and its remnants to bring gusty winds to Ireland and the United Kingdom over the weekend of Sept. 30 and Oct. 1.

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  • Helium in coal seams may aid safe gas extraction

    Natural deposits of helium gas – best known for its use in party balloons – could help aid the safe production of shale or coal gas, research suggests.

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  • Bioreactors on a chip renew promises for algal biofuels

    For over a decade, companies have promised a future of renewable fuel from algae. Investors interested in moving the world away from fossil fuel have contributed hundreds of millions of dollars to the effort, and with good reason. Algae replicate quickly, requiring little more than water and sunlight to accumulate to massive amounts, which then convert atmospheric CO2 into lipids (oils) that can be harvested and readily processed into biodiesel.

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  • Model predicts performance of glucose-responsive insulin

    People with Type 1 diabetes must check their blood glucose several times a day and inject themselves with insulin to keep their blood sugar levels within a healthy range. A better alternative, long sought by diabetes researchers, would be insulin that is engineered to linger in the bloodstream, becoming active only when needed, such as right after a meal.

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  • Antarctica: the wind sublimates snowflakes

    Researchers have observed and characterized a weather process that was not previously known to occur in Antarctica's coastal regions. It turns out that the katabatic winds that blow from the interior to the margins of the continent reduce the amount of precipitation (mainly snowfall) -- which is a key factor in the formation of the ice cap. By forming a very dry layer of air in the first kilometer or so of atmosphere, the winds turn the falling snowflakes during their fall directly from their solid state into water vapor in a process known as sublimation.

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  • Electrically Heated Textiles Now Possible via UMass Amherst Research

    Commuters, skiers, crossing guards and others who endure frozen fingers in cold weather may look forward to future relief as manufacturers are poised to take advantage of a new technique for creating electrically heated cloth developed by materials scientist Trisha Andrew and colleagues at the University of Massachusetts Amherst. They have made gloves that keep fingers as warm as the palm of the hand.

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  • NASA Finds Hurricane Lee's Strength Shift

    Hurricane Lee began weakening as NASA's Aqua satellite passed overhead and collected temperature information. Satellite data showed that Lee's strongest side was south of its center.

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  • NASA Glenn Tests Thruster Bound for Metal World

    As NASA looks to explore deeper into our solar system, one of the key areas of interest is studying worlds that can help researchers better understand our solar system and the universe around us. One of the next destinations in this knowledge-gathering campaign is a rare world called Psyche, located in the asteroid belt.

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  • NASA Sees Maria Weaken to a Tropical Storm

    NASA and NOAA satellites provided information and imagery to forecasters that showed Hurricane Maria weakened to a tropical storm on Sept. 28.

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