May 7, 2007 5:02 AM PDT

Megastar explodes in brightest supernova ever seen

Blast rips apart star some 150 times bigger than our sun in a relatively nearby galaxy. Astronomers predict similar event in our own galaxy.
Images: X-rays document death of a star

The story "Megastar explodes in brightest supernova ever seen" published May 7, 2007 at 5:02 AM is no longer available on CNET News.

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