'NASA released an image Monday of the death of an enormous star with a mass 150 times larger than the sun. They say it is the brightest, most powerful supernova ever observed. The SN 2006gy supernova occurred 240 million light-years away. It was studied using NASA's Chandra X-ray Observatory, which was launched into orbit in 1999, as well as earthbound optical telescopes.' (CNET News article).
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