Time by time, there are visitors coming to our solar system. It was thought that a comet hit long ago was the cause of Danosior distinction. Now we have a big visitor, Comet ISON WILL get to near the Sun by Thanksgiving. The ISON is about 20 miles x 90 miles. It’s speed was estimated to be 50,000 mph, a thousand times of car speed. It is so lucky that we were on the other of the ISON path to Sun.

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