Comet ISON is now two days away from a close encounter with the Sun, an encounter that it very well may not survive. On Thursday ISON will sweep around the Sun, clearing its roiling surface by as little as 800,000 miles. After Thanksgiving, one of three fates will have come to pass.
Copy the code below to embed this infographic on your site: As long as ISON survives on Nov. 28, early December should be
Joe Rao serves as an instructor and guest lecturer at New York's Hayden Planetarium. He writes about astronomy for Natural
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