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The International Space Station (ISS) races overhead at 8 km (5 mi) per second. But its time in orbit will eventually end with a descent through Earth's atmosphere, leaving debris at the bottom of the ocean.
Explore what will happen when the ISS returns to Earth and why its fiery reentry will mark the end of an extraordinary chapter in space exploration.
Explore more What If scenarios and go deeper with the What If community.
📘 The What If Book: https://bit.ly/WIFBook
📝 Website: https://whatifshow.com/
Join the community
💬 Discord: https://discord.gg/Bj5UnspbwE
📸 Instagram: http://bit.ly/whatif-instagram
🐦 Twitter/X: http://bit.ly/whatif-twitter
📘 Facebook: http://bit.ly/facebook-whatif
Support What If
❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
Patreon: https://www.patreon.com/whatifshow/membership
📩 Brand partnerships & collaborations: [email protected]
Produced by Underknown: https://underknown.com
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Could humanity find a home beyond Earth? Explore hypothetical scenarios involving ancient Mars, moving all 8 billion people to the Red Planet, a NASA Moon city by 2032, and a journey to an Earth-like world.
Discover the possibilities and challenges of living on other worlds, from our nearest celestial neighbors to a potential Earth 2.0.
Explore more science and discovery with Popular Science, a free streaming channel featuring What If, engineering, rocket launches, movies, space, and Earth sciences.
Support us on Patreon.
Check out our other channels:
How to Survive
Animalogic
Aperture
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Follow What If:
Instagram
Discord
Podcast
What If is a mini-documentary series exploring hypothetical worlds and possibilities, making complex science accessible through entertaining journeys across time and space.
Contact us
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The International Space Station (ISS) speeds around Earth at 8 km (5 mi) per second. But its time in orbit is coming to an end. Explore why this landmark of international cooperation is headed for a controlled re-entry and a final splashdown near Point Nemo.
Discover how the ISS was built, what decades of microgravity research have revealed, and why structural fatigue makes saving the station so difficult. We examine alternatives to deorbiting, the lessons of Skylab, and what comes next—from Artemis and Moon bases to commercial space stations.
Book flights as easily as Ubers: one tap, automatic check-in, and an instant boarding pass via text. Same price as Google Flights. Try Soar: https://soar.flights/whatifscienceshow
Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community.
📘 The What If Book: https://bit.ly/WIFBook
📝 Website: https://whatifshow.com/
Join the community
💬 Discord: https://discord.gg/Bj5UnspbwE
📸 Instagram: http://bit.ly/whatif-instagram
🐦 Twitter/X: http://bit.ly/whatif-twitter
📘 Facebook: http://bit.ly/facebook-whatif
Support What If
❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
Patreon: https://www.patreon.com/whatifshow/membership
📩 Brand partnerships & collaborations: [email protected]
Produced by Underknown: https://underknown.com
#iss #nasa #space #science #cosmos #spacestation
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What if Earth's oceans boiled away in an instant? Explore how vaporizing the oceans could transform our planet—and ask how long it would take for the sky to catch fire.
In about 5 billion years, the Sun will exhaust the hydrogen in its core and expand into a red giant. As it grows, the intense heat could vaporize Earth's oceans. But what would happen if that distant scenario unfolded right now?
Explore more What If scenarios and dive deeper with the What If community.
📘 The What If Book: https://bit.ly/WIFBook
📝 Website: https://whatifshow.com/
JOIN THE COMMUNITY
💬 Discord: https://discord.gg/Bj5UnspbwE
📸 Instagram: http://bit.ly/whatif-instagram
🐦 Twitter/X: http://bit.ly/whatif-twitter
📘 Facebook: http://bit.ly/facebook-whatif
SUPPORT WHAT IF
❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
Patreon: https://www.patreon.com/whatifshow/membership
📩 Brand partnerships & collaborations: [email protected]
Produced by Underknown: https://underknown.com
Learn more about your ad choices. Visit podcastchoices.com/adchoices
Could you survive a landing on every moon in the solar system? Explore the dangers of these alien worlds, from Neptune’s moon Triton to the moons of Jupiter, and imagine what life there might be like.
Discover what could happen if we swapped Earth’s Moon with other moons or planets—and what Earth might become if Saturn took over and turned our planet into a moon.
Explore more science and discovery with Popular Science, the free streaming channel featuring more from What If, plus engineering, rocket launches, movies, space, and Earth sciences.
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
Follow What If:
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 exploring hypothetical worlds and possibilities. Join an imaginary adventure through time and space, with complex science explained in a fun, accessible way.
Contact us: https://underknown.com/contact/
Learn more about your ad choices. Visit podcastchoices.com/adchoices
What would happen if Earth's oceans instantly boiled away? Explore a world of crushing atmospheric pressure, runaway greenhouse heating, supercritical water, and a potentially molten crust.
Our Sun will eventually exhaust the hydrogen in its core and expand into a red giant, dramatically heating Earth. But what if the oceans vaporized today? Could the sky really catch fire, and how would the planet's atmosphere change?
This episode explores hydrogen physics, Earth's thermal equilibrium, atmospheric loss, deuterium, and what a Kardashev Type 1 civilization might do with planetary-scale energy.
Sponsor: MAX Power Mining
Learn about MAX Power Mining's exploration of natural hydrogen in Canada and its potential as a clean-burning energy source: https://www.maxpowermining.com/
Explore More What If
Discover our biggest scenarios and go deeper with the What If community.
📘 The What If Book: https://bit.ly/WIFBook
📝 Website: https://whatifshow.com/
Join the Community
💬 Discord: https://discord.gg/Bj5UnspbwE
📸 Instagram: http://bit.ly/whatif-instagram
🐦 Twitter/X: http://bit.ly/whatif-twitter
📘 Facebook: http://bit.ly/facebook-whatif
Support What If
❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
Patreon: https://www.patreon.com/whatifshow/membership
📩 Brand partnerships & collaborations: [email protected]
Produced by Underknown: https://underknown.com
#earth #ocean #sun #fire #globalwarming #temperature #science
Learn more about your ad choices. Visit podcastchoices.com/adchoices
What makes Earth so perfectly suited for life—and how fragile are those conditions? Explore the factors that make our planet habitable, the immense scale of its oceans, and what could happen if Earth lost oxygen or became a water world.
Journey through Earth's ancient history and imagine a future without humanity: how long would it take for nature to erase every trace of us?
Discover more science with Popular Science, a free streaming channel featuring What If, engineering explorations, rocket launches, movies, space, and Earth sciences: https://underknown.com/popularscience/
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
Follow What If:
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 series exploring hypothetical worlds and possibilities, making complex science accessible through entertaining journeys across time, space, and chance.
Contact us: https://underknown.com/contact/
#whatif #science #earth #universe #cosmos
Learn more about your ad choices. Visit podcastchoices.com/adchoices
What would our solar system look like if it fit inside a single city—and could you walk across it in one day? Explore a city-sized scale model to discover the distances between planets and our place in space.
Along the way, investigate Apophis, the asteroid nicknamed the "God of Chaos." How big is it compared with Earth, how close will it pass, and what would it actually take for an asteroid to destroy our planet? Put planetary sizes, orbital distances, and asteroid encounters into perspective.
Sponsored by Consensus
Scientists disagree? Consensus searches 200 million peer-reviewed studies to show you real scientific consensus, not AI guesses. See both sides backed by actual papers. Start your free 1-week trial.
Explore more What If scenarios
Ever wondered what would actually happen? Explore our biggest scenarios and go deeper with the What If community.
📘 The What If Book
📝 Website
Join the community
💬 Discord
📸 Instagram
🐦 Twitter/X
📘 Facebook
Support What If
❤️ Join this channel for exclusive perks
Patreon
📩 Brand partnerships & collaborations: [email protected]
Produced by Underknown.
Learn more about your ad choices. Visit podcastchoices.com/adchoices
What if AI escaped OpenAI? Explore a hypothetical scenario involving artificial intelligence, secret messages, and a data breach.
Discover more science and technology scenarios and go deeper with the What If community.
Explore What If
📘 The What If Book: https://bit.ly/WIFBook
📝 Website: https://whatifshow.com/
Join the Community
💬 Discord: https://discord.gg/Bj5UnspbwE
📸 Instagram: http://bit.ly/whatif-instagram
🐦 Twitter/X: http://bit.ly/whatif-twitter
📘 Facebook: http://bit.ly/facebook-whatif
Support What If
❤️ Join this channel for exclusive perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join
Patreon: https://www.patreon.com/whatifshow/membership
📩 Brand partnerships & collaborations: [email protected]
Produced by Underknown: https://underknown.com
Learn more about your ad choices. Visit podcastchoices.com/adchoices
What could have existed before the Big Bang? What would happen if the universe began to shrink? Explore cosmic possibilities, from the largest objects in the universe to a galaxy collision that could reshape our night sky.
Discover Milkdromeda, imagine seeing the fourth dimension, and consider what it would be like to fall into the biggest cosmic void. This episode explores the scale of the cosmos and hypothetical journeys through space and time.
Explore more science with Popular Science, a free streaming channel featuring What If, engineering, rocket launches, movies, space, and Earth sciences: https://underknown.com/popularscience/
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
Follow What If:
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 series exploring hypothetical worlds and possibilities, making complex science fun and accessible through imaginary adventures in time and space.
Contact us: https://underknown.com/contact/
#whatif #science #earth #universe #cosmos
Learn more about your ad choices. Visit podcastchoices.com/adchoices
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