Life in the Universe: Crash Course Astronomy #46 | Watch Crash Course Astronomy on PBS Wisconsin

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Life in the Universe: Crash Course Astronomy #46

01/21/16 | 11m 9s | Rating: NR

Here it is, folks: the end. In our final episode of Crash Course Astronomy, Phil gives the course a send off with a look at some of his favorite topics and the big questions that Astronomy allows us to ask.

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