Archive: 16/06/2009

Giant eruption reveals 'dead' star

An enormous eruption has found its way to Earth after travelling for many thousands of years across space. Studying this blast with ESA's XMM-Newton and Integral space observatories, astronomers have discovered a dead star ...

dateJun 16, 2009 in Astronomy
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Contemplating excess wind

How much usable energy do wind turbines produce? It is a question that perplexes engineers and frustrates potential users, especially on windless days. A study published this month in the International Journal of Energy provides ...

dateJun 16, 2009 in Energy & Green Tech
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