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Interstellar Travel

Course video 77 of 80

The final lecture discusses the search for technologically advanced life in the Galaxy. We describe the “Fermi Paradox”: if technologically advanced life is common, then it would have long ago spread through the Galaxy. Thus, we might have expected to have already encountered life. This lecture ends by contemplating “why aren’t they here?”

Princeton University
4.8 (273 ratings) | 33K Students Enrolled

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