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Actual SETI Searches. Project Phoenix, the largest search of individual star systems for radio signals before 2015, trained its antennas on Sun-like stars up to about 150 light-years away. How many civilizations would there have to be in order for the average distance between civilizations to be 150 light-years? If the actual value of N is 10,000, would we expect Project Phoenix to have made a detection? What if the actual value of N is 10 million? Explain.
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Modified Mastering Astronomy With Pearson Etext -- Standalone Access Card -- For Life In The Universe (4th Edition)
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