Earth may seem perfectly designed for life, but beneath the surface lies a world of terrifying possibilities. From the unimaginable depths of the oceans to a planet without oxygen, from Earth’s ancient past to a future without humanity, how fragile is the world we call home? Enjoying this video? Dive even deeper into the world of science and discovery with Popular Science, the free streaming channel bringing you more of what you love from What If, plus epic explorations in engineering, rocket launches, movies, space, and Earth sciences https://underknown.com/popularscience/ 00:05 - What If We Swapped Our Moon With Other Moons? 20:25 - What Would Dying on Every Moon Be Like? 50:39 - What If You Spent 5 Seconds on Triton, the Moon of Neptune? 1:11:43 - What If You Lived on the Moons of Jupiter? 1:;26:29 - What If We Swapped Our Moon With Other Planets? 1:45:39 - Earth Becomes a Moon | What If Saturn Took Over? Support us on Patreon: https://www.patreon.com/whatifshow/membership Check out our other channels: How to Survive: https://bit.ly/how-to-survive-show Animalogic: https://www.youtube.com/@UCwg6_F2hDHYrqbNSGjmar4w Aperture: https://bit.ly/aperture-show T-shirts and merch: http://bit.ly/whatifstore What If elsewhere: Instagram: http://bit.ly/whatif-instagram Discord: https://discord.gg/Bj5UnspbwE Podcast: http://bit.ly/yt-what-if-show-podcast What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way. Contact us at https://underknown.com/contact/ NUGABYMSNFFFZU7D #whatif #science #earth #universe #cosmos #moon