Science Friday 2022-09-23 Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Big Ideas In Physics, Saturn’s Rings, Soylent Green. Sep 23, 2022, Part 1 Undersea Rovers, Swimming Sperm, Teen Inventor, Soil Judging. Sep 23, 2022, Part 2 Produced by Science Friday and WNYC Studios