The Wenatchee World

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Comet ISON may sizzle this fall

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CHICAGO — When Adler Planetarium astronomer Mark Hammergren first heard the buzz about comet ISON last fall, he felt a familiar tinge of excitement.

The brightest comet in the last century. As vivid as a full moon in the night sky over Chicago. A once-in-a-lifetime, blazing spectacle.

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