Science Friday 2021-02-19 Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Fauci On Vaccines and Variants, Mummy Mystery, Texas Power Grid Failure. Feb 19, 2021, Part 1 Tech Unions, Color Perception, Fish Vs Birds. Feb 19, 2021, Part 2 Produced by Science Friday and WNYC Studios
