John Kyrk built this very cool animation of the evolution of the universe. Move a slider from the Big Bang forward through present times and see various stages of development.

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Scientists have collected new evidence of the events in the first trillionth of a second of the universe. The evidence supports the "inflation" scenario, where the universe suddenly grew from submicroscopic to astronmical. Scientists collected this data over 3 years from the Wilkinson Microwave Anisotropy Probe (WMAP) satellite.

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