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View Full Version : What’s Up this Week: February 19 - February 25, 2007



Fraser
2007-Feb-20, 08:02 PM
Monday, February 19 - Today is the birthday of Nicolas Copernicus. Born in 1473, he was the creator of the modern solar system model which illustrated the retrograde motion of the outer planets. ...

Read the full blog entry (http://www.universetoday.com/2007/02/20/what%e2%80%99s-up-this-week-february-19-february-25-2007/)