What If We Found Alien Life on K2-18 b?
What If
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An epic exploration of possibilities. Join Peter and explore science-based hypothetical worlds across space, technology, Earth, and prehistoric history. Each episode begins with a simple “what if” question and follows real scientific theory, physics, biology, and astronomy to see where those ideas could lead. Travel from deep space and alien planets to future technology and ancient life on Earth, and discover how small changes in science or history could reshape life, civilization, and the universe. It’s a blend of science education, imagination, and real research that helps you see our world, and the cosmos, from a fresh perspective.
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Scientists might have discovered life outside the Solar System. Welcome to planet K2-18 b. This exoplanet is 124 light-years away from us, and it has the most promising evidence for life we've ever found. 00:00 What If We Found Alien Life on K2-18 b? 01:04 K2-18b Overview 02:58 Is K2-18b a super-Earth or mini-Neptune? 05:46 Temperature on K2-18 b 08:37 Volcanic Islands 09:52 Atmosphere Analysis 11:31 Alien search begins 13:03 Fermi paradox discussion 15:16 Great Filter Theory 16:53 Biosignatures 19:45 Escape Support us on Patreon: https://www.patreon.com/whatifshow/membership Get the What if book: http://bit.ly/ytc-the-what-if-100-book Join this channel to get access to perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join Interested in sponsoring our episodes or collaborating? Email us: [email protected] Our other channels: How to Survive: https://bit.ly/how-to-survive-show Aperture: https://bit.ly/aperture-show T-shirts and merch: https://bit.ly/shopwhatif Newsletter: http://bit.ly/whatif-newsletter What If elsewhere: Discord: https://discord.gg/Bj5UnspbwE Whatsapp: https://whatsapp.com/channel/0029Va8VC502ER6r1yk1yP2Y Instagram: http://bit.ly/whatif-instagram Twitter: http://bit.ly/whatif-twitter Facebook: http://bit.ly/facebook-whatif Produced by Underknown: https://underknown.com #whatif #exoplanet #space #cosmos #nasa
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