When the Cassini spacecraft blasted into space on October 15, 1997, even the most optimistic scientists would have had a hard time predicting the mission’s success. Dr. Michelle Thaller speaks with the Cassini mission’s Project Scientist Linda Spilker, as well as Julie Webster, a longtime Cassini engineer and a manager for spacecraft operations. One of Cassini’s biggest legacies will be how she gave a much clearer picture of Saturn’s 62 moons, including two worlds that scientists now think could potentially host life.

Nearly twenty years later, Cassini will crash-land into Saturn’s atmosphere this September, ending a rich chapter in exploration and discovery of our own solar system.

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