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— Automotive

Top 10 green concept cars of 2014

Not only was 2014 a great year for sports concepts, it was a great year for green cars. Environmentally friendly production cars like the Toyota Mirai fuel cell vehicle and Volkswagen Golf GTE made their debuts and numerous concepts provided a window into a cleaner commuting future, showcasing technologies that will get us from point A to point B without so much impact on the rest of the alphabet. Here are our favorite green concept cars from the year. Read More
— Space

Rosetta sheds light on origin of Earth's oceans

The oceans are a mystery in more ways than one, but you might not expect the answers to come from a pack of electronics and a comet. But that's what the European Space Agency (ESA) says about the unmanned Rosetta probe orbiting comet 67P/Churyumov–Gerasimenko. Though 67P is making its first visit to the inner Solar System and won't come closer to the Earth than hundreds of millions of miles, it is throwing new light on one of the fundamental questions in Earth's history: Where did the oceans come from? Read More
— Environment

Record efficiency for converting solar energy to hydrogen without rare metals

Using solar energy to split water into its component parts, thereby allowing the solar energy to be stored as hydrogen fuel, generally involves one of two methods: using photoelectrochemical cells to directly split the water, or using solar cells to produce electricity to power an electrolyzer that separates the water molecules. One problem associated with the latter method is that it currently relies on rare metals. But now scientists from Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland have managed to do so using common materials, and have achieved a record solar energy to hydrogen conversion efficiency in the process. Read More
— Aircraft

Airbus examines potential for using hydrogen fuel cells in commercial aircraft

With the airline industry's commitment to halve 2005 CO2 emission levels by 2050 prompting Airbus and others to accelerate the development of alternative jet fuels, Airbus is now getting behind a project to examine the potential for using hydrogen fuel cells on commercial airliners – not to power the jet engines, but to replace the Auxiliary Power Units (APUs). Read More