Comet Flares Unexpectedly in Northeast Sky

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A strange glow in the sky is surprising amateur and professional astronomers alike. It's Holmes Comet, a periodic visitor near Earth. During this visit, it has blazed brightly and grown larger — a fuzzy point in the Northeast sky that's visible to the naked eye.

Alan MacRobert of Sky and Telescope magazine talks with Robert Siegel about how to find the comet — and about the mystery of its unexpected outburst.



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