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Bang: the cataclysmic death of stars.

National Geographic,  March, 2007  by Cowen, Ron

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Once a second somewhere in the universe a star explodes with the brilliance of an entire galaxy. Ever since he was a teenager, Stan Woosley has had a love for chemical elements and a fondness for blowing things up. Growing up in the late 1950s in Texas, "I did everything you could do with potassium nitrate, perchlorate, and permanganate, mixed with a lot of other things," he says.

"If you mixed potassium nitrate with sulfur and charcoal, you got gunpowder. If you mixed it with sugar, you got a lot of smoke and a nice pink fire." He tested his explosive ...

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