Extraterrestrials, prisms, music, scientific curiosity, the pursuit of knowledge, and more – Neil deGrasse Tyson and pop music superstar Katy Perry discuss their shared love of the universe. Featuring comic co-host Sasheer Zamata and astrophysicist Charles Liu. NOTE: StarTalk All-Access subscribers can listen to this entire episode commercial-free here: https://www.startalkradio.net/all-access/katy-perrys-cosmic-curiosity/ Photo Credit: Jon Betz.