Cosmos

Season 2, Episode 8

Episode Title: The Sacrifice of Cassini

Air Date: 2020-03-30

Overview:

The mysterious untold story of the scientist who figured out how to go the Moon while fighting for his life in a WWI trench. He wrote a letter to fifty years in the future. It made the Apollo Mission possible. And the saga of the twenty-year long odyssey of a robotic explorer ordered to commit suicide on another world.