Sara Walker is an astrobiologist and theoretical physicist. Lee Cronin is a chemist. This is a conversation and debate about alien life and alien civilizations. Please support this podcast by checking out our sponsors: – Uncruise: https://uncruise.com/pages/lex – Linode: https://linode.com/lex to get $100 free credit – ExpressVPN: https://expressvpn.com/lexpod and use code LexPod to get 3 months free – ROKA: https://roka.com/ and use code LEX to get 20% off your first order – Athletic Greens: https://athleticgreens.com/lex and use code LEX to get 1 month of fish oil EPISODE LINKS: Sara’s Twitter: https://twitter.com/Sara_Imari Sara’s Website: http://emergence.asu.edu Lee’s Twitter: https://twitter.com/leecronin Lee’s Website: https://www.chem.gla.ac.uk/cronin