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texasmade2550 texasmade2550
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2 weeks ago

In the Drake equation, when considering the possible number of technologically advanced civilizations in our galaxy, which of the terms is most uncertain?



the number of stars in our galaxy



the average lifespan of the civilization



the fraction of suitable planets on which life begins



the fraction of a star's life during which an intelligent species is communicative

Textbook 
ASTRO

ASTRO


Edition: 3rd
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lizwalkerlizwalker
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