About Cosmos: A SpaceTime Odyssey Season 3, Episode 8 : The Sacrifice of Cassini

Documentary See more Cosmos: A SpaceTime Odyssey seasons and episodes here

A mysterious untold story is brought to life: a scientist figures out how to go to the Moon while fighting for his life in a World War I trench. He wrote a letter addressed to readers 50 years in the future, making the Apollo Mission possible. Witness the 20-year-long odyssey of a robotic explorer ordered to self-destruct on another world.

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