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Classroom Activity 10 Big Question: How did the universe begin? Galaxy Zoo You will need a computer with Internet access There other types of galaxies besides spiral and elliptical, such as barred spirals and
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Document Date: 2012-09-10 20:41:03
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Classroom Activity 10 Big Question: How did the universe begin? Galaxy Zoo You will need a computer with Internet access There other types of galaxies besides spiral and elliptical, such as barred spirals and