Cosmos Revisited Part 3 of 4

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A review of Carl Sagan's prescient 1980 series "Cosmos". Here Sagan suggests how we might stop Eart...
A review of Carl Sagan's prescient 1980 series "Cosmos". Here Sagan suggests how we might stop Earth becoming another fiery inferno like Venus. *******visionon.tv *******peppersprayproductions**** *******carlsagan****
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