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First Pictures: WISE Telescope Spies Comet, More
18/02/2010
National Geographic
Comet Siding Spring and its ghostly tail streak across the sky in one of the first infrared pictures taken by NASA's new Wide-field Infrared Survey Explorer (WISE) space telescope, which were released February 17.
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Best Science Pictures Announced
18/02/2010
National Geographic
The shot was selected as best photograph in the 2009 International Science and Engineering Visualization Challenge. The annual contest, sponsored by the National Science Foundation and the journal Science, award outstanding artistic efforts to visualize complex scientific concepts.
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Photosynthesis: A New Source of Electrical Energy? Biofuel Cell Works in Cactus
18/02/2010
ScienceDaily
Scientists in France have transformed the chemical energy generated by photosynthesis into electrical energy by developing a novel biofuel cell. The advance offers a new strategy to convert solar energy into electrical energy in an environmentally-friendly and renewable manner. In addition, the biofuel cell could have important medical applications.
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Jets of Particles Streaming from Black Holes in Far-Away Galaxies Different Than Previously Thought
18/02/2010
ScienceDaily
Jets of particles streaming from black holes in far-away galaxies operate differently than previously thought, according to a study published February 17 in Nature. The new study reveals that most of the jet's light -- gamma rays, the universe's most energetic form of light -- is created much farther from the black hole than expected and suggests a more complex shape for the jet.
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Atom Interferometer Provides Most Precise Test Yet of Einstein''s Gravitational Redshift
18/02/2010
ScienceDaily
While airplane and rocket experiments have proved that gravity makes clocks tick more slowly -- a central prediction of Albert Einstein's general theory of relativity -- a new experiment in an atom interferometer measures this slowdown 10,000 times more accurately than before, and finds it to be exactly what Einstein predicted.
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