StarTalk Podcast: Cosmic Queries – Life on Venus, with Neil deGrasse Tyson

Teacher or professor: StarTalk
Subject: Astronomy
Content of the Lesson: Is there life on Venus? Neil deGrasse Tyson, comic co-host Paul Mecurio, and astrobiologist David Grinspoon investigate the recent discovery of phosphine gas in Venus’s atmosphere and answer your Cosmic Queries. We gathered up all your Cosmic Queries about the recent news and we start with the big question: Does this mean there’s life on Venus? Could there be a habitable zone? David tells us why the answer is…maybe. We explore the discovery of the phosphine gas and the possible explanations behind its existence in Venus’s atmosphere. You’ll explore what’s next after a discovery like this. Can we bring samples back to Earth? David gives details on the complexity of a mission to the Venusian atmosphere. We also explore Venus’s volcanoes and its geologically-active surface. David explains why, if we want to know what’s going on in the atmosphere, we have to know what’s happening on the surface. Then, we take a look at Earth: Can we use Earth to help us deduce what’s happening on Venus? We ponder the best way to search for life in the universe. We also ponder whether life needs water to thrive or if life just needs liquid. David gives us the top three gases that could be used to signify life elsewhere. Find out why Venus’s atmosphere is so thick. We discuss Venus’s runaway greenhouse effect and the viscous circle of its carbon cycle. We also wonder if a probe from Earth might have introduced microbes to Venus’s atmosphere. All that, plus, we ask the very important question: Is the Wicked Witch of the West actually from Venus? Support us on Patreon: https://www.patreon.com/startalkradio Subscribe to StarTalk: https://www.youtube.com/user/startalkradio?sub_confirmation=1 Follow StarTalk: Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalkradio/ 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


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