How did Greek mythology influence the stars? On this explainer, Neil deGrasse Tyson and comedian Chuck Nice explore the myth of Medusa and what it shows about ancient theories about sight. Learn about discovering the mechanism of sight in the golden age of Islam. Are there other examples of misconceptions about sight in mythology? We explore the constellation of Perseus, the head of Medusa, and the variable star that is her eye. Video Credits: The Constellations - Perseus | Delta Planetarium: https://www.youtube.com/watch?v=AZUtsmrNM0g Image Credit: Perseus vs the Kraken by VegasMike https://www.deviantart.com/vegasmike/art/Perseus-vs-the-Kraken-89613766 Get the NEW Cosmic Queries book (5/5 ⭐s on Amazon!): https://amzn.to/3dYIEQF Support us on Patreon: https://www.patreon.com/startalkradio FOLLOW or SUBSCRIBE to StarTalk: Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalk About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! #StarTalk #neildegrassetyson 00:00 - Medusa’s Eyes & Algol 03:14 - Misconceptions of Vision & Ibn al-Haytham 05:50 - Other Vision Stories