Friday, December 2, 2011

NASA Per Aspera Ad Astra


From The Sagan Series, part 4 - NASA Per Aspera Ad Astra

The Sagan Series:
Part 1 - The Frontier Is Everywhere
Part 2 - Life Looks for Life
Part 3 - A Reassuring Fable
Part 4 - NASA Per Aspera Ad Astra

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