Comet ISON may sizzle or fizzle this fall

Mark Hammergren, astronomer at the Adler Planetarium in Chicago, is photographed September 12, 2013, with an image of the comet ISON on his computer. The comet will be closest to the sun on Nov. 28 and might be highly visible before dawn on the days just following that. (Nancy Stone/Chicago Tribune/Tribune News Service via Getty Images)
Mark Hammergren, astronomer at the Adler Planetarium in Chicago, is photographed September 12, 2013, with an image of the comet ISON on his computer. The comet will be closest to the sun on Nov. 28 and might be highly visible before dawn on the days just following that. (Nancy Stone/Chicago Tribune/Tribune News Service via Getty Images)
Comet ISON may sizzle or fizzle this fall
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Credit:
Chicago Tribune / Contributor
Editorial #:
180851210
Collection:
Tribune News Service
Date created:
September 12, 2013
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Source:
Tribune News Service
Object name:
1154778100