Guest: Dr. Ken Croswell, astronomer, talks about Comet Ison, which will light up the Holiday season night sky with a spectactular show. He also discusses the latest discoveries in astronomy.

ON Exploration | December 1, 2013 | 5:00 am

Comet Ison

Guest: Dr. Ken Croswell, astronomer, talks about Comet Ison, which will light up the Holiday season night sky with a spectactular show. He also discusses the latest discoveries in astronomy.

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