An Introduction to the Dust-Cloud Hypothesis (318 words, 2 pages)
The Dust-Cloud HypothesisThe universe contains huge clouds made up of very large amountsof dustand gas. About 6,000,000,000 (billion) years ago, one ofthese clouds began to condense. Gravitation--the pull that allobjects in the universe have for one another--pulled the gas anddust particles together. As the dust cloud condensed, it beganto spin. ...
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