Comet ISON may sizzle or fizzle this fall

Mark Hammergren, astronomer at the Adler Planetarium in Chicago, is photographed September 12, 2013, and talks about the comet ISON that 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, and talks about the comet ISON that 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 #:
180851194
Collection:
Tribune News Service
Date created:
12 September, 2013
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Licence type:
Rights-managed
Release info:
Not released. More information
Source:
Tribune News Service
Object name:
1154778200