News tagged with nuclear reaction

The earliest stars in the Universe

( -- Matter in the universe after the big bang consisted almost entirely of hydrogen and helium atoms. Only later, after undergoing fusion reactions in the nuclear furnaces of stars, did these light elements transform ...

dateDec 19, 2011 in Astronomy
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The making of dust

( -- On the Earth, dust particles are everywhere - under beds, on bookshelves, even floating in the air. We take dust for granted. Dust is also common in space, and it is found for example in the cold, dark molecular ...

dateJul 06, 2011 in Astronomy
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X-ray illumination of supernova ejecta

( -- Supernovae are the explosive deaths of massive stars, cataclysms that disburse into space the chemical elements produced by nuclear reactions inside the progenitor stars. Understanding chemical enrichment ...

dateJun 24, 2011 in Astronomy
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