Introductions Necessary

On July 19, 2013, the Cassini spacecraft turned to take an image of much of our solar system that included Saturn, Mars, Venus, and the Earth. This historic picture of The Day the Earth Smiled was possible thanks to planetary scientist Dr. Carolyn Porco. Image: Cmichel57/Wikimedia (CC BY-SA 4.0) Sources and additional reading are available at https://introductionsnecessary.com Join us on Patreon: https://www.patreon.com/ninehourfilms