Uploaded November 2013 | Updated September 2026, 2 weeks ago

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Comets happen all the time, but ISON is special: At 4.5 billion years old, it's still "dynamically new" - meaning it's never passed the sun before. On Thanksgiving day, the comet will come into its closest approach to the sun, which could mean a spectaular holiday lightshow visible to the naked eye.

NASA is hosting a Google Hangout on Thursday tracking its progress. Check it out here if you're interested:
plus.google.com/events/c8t7i5dbr1k50oq89giloiqe8rc

More images and video here:
nasa.gov/ison

And hey, at least it's not this guy again -
youtube.com/watch?v=AqSZhwu1Rwo

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