Suppose there are 1.1×104 civilizations broadcasting radio signals in the Milky

C

christina

New member
Way Galaxy right now.? Part A:
On average, how many stars would we have to search before we would expect to hear a signal? Assume there are 500 billion stars in the galaxy.

Part B:
How does your answer change if there are only 100 civilizations instead of 1.1×104?
 
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