Comet ISON is now inside the orbit of Earth as it plunges headlong toward the sun for a fiery close encounter on Nov. 28th. The comet is putting on a good show for observatories around the solar system, especially after an outburst on Nov. 13-14 that boosted the comet's brightness 10-fold. NASA spacecraft and amateur astronomers alike are snapping crisp pictures of the comet's gossamer green atmosphere and suddenly riotous tail.
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