An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners of the universe, others right here on Earth. Each scenario examines a scientific theory, research or fact through a hypothetical question.
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Every planet has something to hide, buried treasure worth hundreds of trillions, lost to the eons of time. But what is even out there? And if we got there to see it, what could we do with it? And if we sold it, how much would it be worth?
Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community:
The What If Book
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Support What If:
Merch
Join this channel for exclusive perks
Patreon
More from Underknown:
Aperture – Philosophy & Psychology
How to Survive – Survival Science
Brand partnerships & collaborations: contact@underknown.com
Produced by Underknown: Underknown
00:00:00: What If We Mined Every Planet in the Solar System?00:01:15: The Moon00:02:58: Mars00:08:32: Mercury00:10:28: Venus00:12:22: The Asteroid Belt00:15:37: Jupiter00:18:03: Saturn00:19:50: Uranus & Neptune
#solarsystem #space #science #mining #planet #cosmos #nasa
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a5aec83b282ca35d242fd2b
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Every Alien World We Could Actually Live On
Thursday, October 8, 2026 • Duration 01:23:19
Enjoying this episode? Dive 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.
Support us on Patreon.
Check out our other channels: How to Survive Animalogic Aperture
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Connect with us elsewhere: Instagram Discord 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 Underknown.
00:05: What If Voyager 1 Crashed on an Alien Planet?22:56: What If Exoplanets Replaced Our Solar System?41:55: What If You Landed on Kepler-22 b?52:52: What If You Spent 5 Seconds on Triton, the Moon of Neptune?1:10:09: What If We Discovered Alien Life on Mars?
#alienworlds #habitableplanets #Voyager1 #exoplanets #Kepler-22b #Triton #Mars #science #discovery #space
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a57caf54c5a82ee53920332
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Living Through Earth's Deadliest Extinctions
Thursday, October 8, 2026 • Duration 01:43:05
Enjoying this video? Dive deeper into science and discovery with Popular Science, a free streaming channel offering more of what you love from What If, plus epic explorations in engineering, rocket launches, movies, space, and Earth sciences.
Support us on Patreon.
Check out our other channels:How to SurviveAnimalogicAperture
T-shirts and merch: What If Store
What If is a mini-documentary web series exploring hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space, and chance while breaking down complex subjects in a fun and entertaining way.
Contact us at Underknown.
Follow us on Instagram: http://bit.ly/whatif-instagramJoin our Discord: https://discord.gg/Bj5UnspbwEListen to our Podcast: http://bit.ly/yt-what-if-show-podcast
00:00:00: What Happened After a 10km Asteroid Hit Earth 66 Million Years Ago?00:07:30: Earth Evolution in 10 Minutes00:17:48: What Was Earth Like Before the Dinosaurs?00:26:53: The Permian Period Explained: Earth's Deadliest Era00:43:01: What Was Earth Like in the Age of Giant Insects?00:50:51: Evolution of Dinosaurs in 10 Minutes01:00:41: What If the Dinosaur-Killing Asteroid Struck Earth in 2025?01:12:02: What If Humans Suddenly Went Extinct?01:20:39: What If We Knew the Time We Go Extinct?
#extinction #dinosaurs #science #earth #evolution #asteroid #Permianperiod #giantinsects
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a51337b4aa5b9a644c804f6
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Witness the End of Jupiter’s Great Red Spot
Wednesday, October 7, 2026 • Duration 19:41
The Great Red Spot of Jupiter, a colossal storm persisting for up to 350 years, might vanish within the next 20 years. Discover the deeper implications of this potential disappearance and the broader cosmic changes occurring in our universe.
Ever wondered what would actually happen? Explore our biggest What If scenarios and go deeper with the What If community. Join us on Discord, WhatsApp, and follow us on Instagram, Twitter/X, and Facebook. Support What If through our merch store or become a member on YouTube or Patreon.
The What If BookArticles
Join the community:DiscordWhatsAppInstagramTwitter/XFacebook
Support What If:MerchExclusive YouTube perksPatreon
More from Underknown:Aperture – Philosophy & PsychologyHow to Survive – Survival Science
Brand partnerships & collaborations: contact@underknown.com
Produced by Underknown
00:00: What If Jupiter Lost Its Great Red Spot?01:11: Jupiter Facts & Scale03:35: Great Red Spot Details06:00: Great Red Spot is Changing08:24: Irreplaceable Science10:55: The Broader Picture14:15: What can we do?
#Jupiter #GreatRedSpot #space #astronomy #science #cosmos #solarsystem #planet #storm
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a47f8e02742d4b184f0c5d1
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The Future of Human Civilization
Wednesday, October 7, 2026 • Duration 01:59:55
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.
Support us on Patreon.
Check out our other channels:How to SurviveAnimalogicAperture
T-shirts and merch: What If Store
Follow What If on:InstagramDiscordPodcast
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 Underknown.
00:00:00: What If Earth Became a Type III Civilization?00:21:54: The Entire Kardashev Scale Explained in 20 Minutes00:39:10: What If We Relocated Humanity to Proxima B?00:47:12: What If NASA Built a Moon City by 2032?01:08:49: What If We Built a Dyson Sphere Around the Sun?01:11:23: What If We Made These Exoplanets Habitable?01:32:21: What If You Traveled Five Billion Years Into the Future?
#science #earth #humanity #KardashevScale #TypeIIICivilization #ProximaB #MoonCity #NASA #DysonSphere #exoplanets #future
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a4482eff574ec2c872c8d0f
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If All Humans Vanished, How Long Until Earth Erased Every Trace?
Tuesday, October 6, 2026 • Duration 27:41
This is Earth, 1,000 years in the future. Humans are long gone... what happened here? And what remains from our time on this planet? Today, we're answering: If all humans vanished, how long would it be until Earth erased every trace of us?
Ever wondered what would actually happen? Explore our biggest 'What If' scenarios and go deeper with the What If community.
📘 The What If Book📝 Articles
─────────────────────────────JOIN THE COMMUNITY─────────────────────────────💬 Discord📲 WhatsApp📸 Instagram🐦 Twitter/X📘 Facebook
─────────────────────────────SUPPORT WHAT IF─────────────────────────────👕 Merch❤️ Join this channel for exclusive perks🙏 Patreon
─────────────────────────────MORE FROM UNDERKNOWN─────────────────────────────🧠 Aperture – Philosophy & Psychology🆘 How to Survive – Survival Science
─────────────────────────────📩 Brand partnerships & collaborations: contact@underknown.com
Produced by Underknown
00:00: How Long Until Earth Erased Every Trace Of Us?00:27: The Great Silence07:19: Extinction Level Events12:10: The Great Collapse19:42: A New Earth
#future #earth #science #humanity #whatif #extinction #collapse #newearth
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a3ebe5187bc9e389007d553
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What If We Dug Through Everything?
Monday, October 5, 2026 • Duration 01:07:51
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.
Support us on Patreon.
Check out our other channels:How to SurviveAnimalogicAperture
T-shirts and merch available at our store.
Connect with What If elsewhere:InstagramDiscordPodcast
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 our website.
00:00:00: What If You Dug to the Earth's Core?00:17:01: What If We Dug a Hole Through the Moon?00:21:49: What If We Drilled a Hole Through Mars?00:27:13: What If We Dug Tunnels Between Continents?00:31:19: What If You Built a Pipe to the Bottom of the Mariana Trench?00:37:04: What If You Drilled a Hole Through Earth?00:45:47: What If You Drilled a Hole at the Bottom of the Mariana Trench?00:50:40: What If You Fell Into the Deepest Hole on Earth?00:56:16: What If We Built the World's Deepest Bunker?
#science #exploration #hypothetical #Earth #Moon #Mars #MarianaTrench #bunker #engineering #rocketlaunches #space #documentary
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a3c1b42a4cfa5ac1cb826f7
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What If You Could Perceive the Fourth Dimension?
Friday, October 2, 2026 • Duration 30:40
Today, we're exploring the concept of becoming a multi-dimensional "super being," allowing you to exist anywhere at any time. Imagine walking through walls effortlessly or passing through solid steel, although legality might be questionable. However, these feats are merely the beginning of your potential capabilities.
Ever wondered what would actually happen? Explore our biggest What If scenarios and delve deeper with the What If community.
📘 The What If Book: The What If Book📝 Articles: Articles
─────────────────────────────JOIN THE COMMUNITY─────────────────────────────💬 Discord: Discord📲 WhatsApp: WhatsApp📸 Instagram: Instagram🐦 Twitter/X: Twitter/X📘 Facebook: Facebook
─────────────────────────────SUPPORT WHAT IF─────────────────────────────👕 Merch: Merch❤️ Join this channel for exclusive perks: Join🙏 Patreon: Patreon
─────────────────────────────MORE FROM UNDERKNOWN─────────────────────────────🧠 Aperture – Philosophy & Psychology: Aperture Show🆘 How to Survive – Survival Science: How to Survive Show
─────────────────────────────📩 Brand partnerships & collaborations: contact@underknown.comProduced by Underknown: Underknown
00:00:00: Higher Dimensional Powers00:02:12: Zero and One Dimensions: Points and Lines00:03:25: The Second Dimension: Flat Surfaces00:06:12: The Third Dimension: Depth and Volume00:08:12: Time as the Fourth Dimension00:10:46: Accessing the Timeline00:14:46: Geometric Fourth Dimension: Physical Space00:16:03: Living as a 4D Superbeing00:21:17: The Fifth Dimension and Beyond00:24:27: String Theory and Tiny Dimensions00:25:54: Dimensional Enlightenment
#dimensions #science #4D #superpower #whatif #multiverse #scifi #quantumphysics #reality
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a3583be72e55a328ab96b8a
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Explained: Every Type of Black Hole
Thursday, October 1, 2026 • Duration 28:10
Today, we're exploring the different types of black holes, from microblackholes on Earth to super-extremal black holes. Discover the potential of creating microblackholes on Earth and the implications they could have, including planetary threats. Explore the fascinating world of stupendously large black holes, fuzzballs, and white holes—some sound like marbles!
Ever wondered what might happen in these scenarios? Dive deeper into our biggest 'What If' scenarios with the What If community.
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The What If BookArticles
JOIN THE COMMUNITYDiscordWhatsAppInstagramTwitter/XFacebook
SUPPORT WHAT IFMerchJoin this channel for exclusive perksPatreon
MORE FROM UNDERKNOWNAperture – Philosophy & PsychologyHow to Survive – Survival Science
For brand partnerships & collaborations: contact@underknown.com
Produced by Underknown
00:00: What If You Visited Every Type of Black Hole?03:19: The Dark Star09:13: Black Holes 10112:49: All The Holes17:17: Supermassive Black Hole Astrophotography19:49: Ultramassive Black Holes20:28: Stupendously Large Black Hole21:09: Ten Really Weird Black Holes23:58: The Super Extremal Black Hole
#blackhole #space #science #universe #astronomy #astrophysics #physics #microblackholes #stupendouslylargeblackholes #fuzzballs #whiteholes
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a2c4942e50ddecb173e397c
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What If We Found Planet 9?
Wednesday, September 30, 2026 • Duration 05:02
The Solar System is known to have 8 planets—9 if you count Pluto's former status. But over the last decade, scientists have observed peculiar phenomena beyond Neptune, Pluto, and the Kuiper Belt. Something mysterious is influencing the orbits of nearby frozen objects. Could it be a massive hidden planet or perhaps a tiny black hole?
Explore these intriguing possibilities and more with our 'What If' scenarios.
Join the conversation and community:
The What If BookArticles💬 Discord📲 WhatsApp📸 Instagram🐦 Twitter/X📘 Facebook
Support What If:
👕 Merch❤️ Exclusive perks🙏 Patreon
More from Underknown:
🧠 Aperture – Philosophy & Psychology🆘 How to Survive – Survival Science
For brand partnerships & collaborations: contact@underknown.com
Produced by Underknown
#Planet9 #planets #space #SolarSystem #science #cosmos #hiddenplanet #blackhole
See show notes: https://inlet.fm/what-if-science-theories-possibilities/episodes/6a27034383b3605a2b23069b
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