Archive: 03/2/2012

Mystery deepens around dark core in cosmic collision

Five years ago, San Francisco State researcher Andisheh Mahdavi and his colleagues observed an unexpected dark core at the center of Abell 520, a cosmic "train wreck" of galaxy clusters. With new space-based telescope observations, ...

dateMar 02, 2012 in Astronomy
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Flying jewels spell death for baby spiders

Spider flies are a rarely collected group of insects. Adults are considered important pollinators of flowers, while larvae live as internal parasitoids of juvenile spiders. Eight genera are recorded in Aust ...

dateMar 02, 2012 in Plants & Animals
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Building a beetle antifreeze

Animals and plants have evolved all sorts of chemical tricks that allow them to colonize extreme environments. For species that call Antarctica or the Arctic home, surviving sub-zero temperatures is an essential ...

dateMar 02, 2012 in Materials Science
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