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Tag Archives: Star Cluster

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Constellations, Galaxies, and the Universe

Earth and SpaceBy William Anderson (Schoolworkhelper Editorial Team)September 21, 2010Leave a comment

*Billions of galaxies make up the universe, which, according to the big bang model, formed between 10 & 20 billion years ago. After today’s lecture, you should be able to: -Tell what a galaxy is and describe the various types of galaxies. -Explain the origin of the universe according to the big bang model. A)…

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