What If We Found a Second Earth Nearby?

What if we found a true second Earth nearby? A living world, a barren paradise, or something too familiar to be natural could change science, politics, and humanity’s future forever. Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur Watch my exclusive video Nearby Supernovae: https://nebula.tv/videos/isaacarthur-... Check out Gods & Monsters: https://nebula.tv/curiousarchive/gods... 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall.... 🌐 Visit our Website: http://www.isaacarthur.net ❤️ Support us on Patreon:   / isaacarthur   ⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-a... 👥 Facebook Group:   / 1583992725237264   📣 Reddit Community:   / isaacarthur   🐦 Follow on Twitter / X:   / isaac_a_arthur   💬 SFIA Discord Server:   / discord   Credits: What If We Found a Second Earth Nearby? Written, Produced & Narrated by: Isaac Arthur Music Courtesy of Stellardrone & Chris Zabriskie Select imagery/video supplied by Getty Images Chapters 0:00 Intro 1:26 What Counts as a “Second Earth”? 4:34 The Hidden Twin 6:24 The Real Discovery: A Nearby Earth 8:42 If It Has Life 9:17 Alien Life, But Compatible 11:15 Familiar Life - Too Familiar 13:26 Gods & Monsters 14:36 If It’s Barren - but Ready 18:00 The Rush: Who Gets a Whole World? 20:49 The Economics of a Second Earth 23:30 How Do You Divide a Planet? 26:27 The Long View: A Second Earth Changes Everything