What If: Science, Theory, and Possibilities

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 here. Support us on Patreon: here Check out our other channels:How to Survive: hereAnimalogic: hereAperture: here T-shirts and merch:...

Kepler-22b is one of the most famous exoplanets ever discovered, a super-Earth in the habitable zone of its star, 600 light-years away. What would happen if humanity launched a nuclear weapon at this distant world? Support us on Patreon: hereGet the What if book: hereJoin this channel to get access to perks: here Interested in sponsoring our episodes or collaborating? Email us: contact@underknown....

Imagine a world where you're not even human. You can create universes with ease and control time. This could be a reality in an incredibly advanced civilization. Is a type 7 civilization even possible? What would humans look like? And why might something like this be a terribly bad idea? Support us on PatreonGet the What if bookJoin this channel to get access to perks: here Interested in sponsorin...

What if some of the most fascinating exoplanets were placed into our Solar System? In this episode, we explore the effects of having these distant worlds, like the Earth-like TRAPPIST-1 e, massive super-Earths, frozen rogue worlds, and a super-Saturn with expansive rings, orbiting our Sun. Support us on PatreonGet the What If bookJoin this channel for perks: YouTube Membership Interested in sponso...

What would it actually take to turn Proxima Centauri b into a livable world? 🌍✨ Orbiting the closest star to our Sun, this Earth-sized exoplanet sits in the so-called habitable zone—but that doesn’t mean it’s ready for humans. From deadly stellar flares and tidal locking to missing atmospheres and extreme radiation, Proxima b comes with some serious challenges. Support us on Patreon: https://www...

Sixty-six million years ago, this asteroid crashed into Earth and wiped out most life, including the dinosaurs. If a similar event happened today, humans would face extinction. Support us on Patreon: https://www.patreon.com/whatifshow/membershipGet the What If book: http://bit.ly/ytc-the-what-if-100-bookJoin this channel to get access to perks: https://www.youtube.com/channel/UCphTF9wHwhCt-BzIq-s4...

What would happen if the Sun suddenly turned into a black hole? Would Earth be instantly swallowed, frozen in darkness, or torn apart by gravity? 🌞🕳️ 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 s...

A terrifying shadow casts over the city as a massive prehistoric creature, the Quetzalcoatlus, flies above, faster than the cars below, hunting in packs. Today, we explore what it would be like if this massive pterosaur had never gone extinct. Discover how Colombian drug lord Pablo Escobar is connected to this story. So, what is Quetzalcoatlus? Contrary to appearances, it is not a dinosaur or a pt...

Saturn is renowned for its magnificent rings, which are the largest and most visible among gas giants, including Jupiter, Uranus, and Neptune. Intriguingly, Saturn emits twice as much energy as it receives from the Sun, suggesting a mysterious internal heat source. Today, we send Chase on a thrilling journey to explore this phenomenon! Support us on Patreon: https://www.patreon.com/whatifshow/memb...

What would actually happen if Donald Trump became a dictator? In this video, we explore a hypothetical scenario where democratic norms collapse and absolute power takes over. Support us on Patreon: hereGet the What if book: hereJoin this channel to get access to perks: here Interested in sponsoring our episodes or collaborating? Email us: contact@underknown.com Our other channels:How to Survive: h...

Imagine a future world where you have endless supernatural powers. You can hop throughout the multiverse and bend time to your will. You'd be part of a super-advanced version of humanity—a type 7 civilization. But how do we get here? 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 p...

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 here. Support us on Patreon: here. Check out our other channels: How to Survive: hereAnimalogic: hereAperture: here T-shirts and merch...

Catastrophic, planet-wide tides flood cities. Pitch black nights. The ice age more powerful than Earth has ever seen. And tungsten-shaded evening skies. This is what would happen if we swapped our Moon with other moons in the Solar System. Spoiler alert - you are not surviving most of these. Support us on Patreon: patreon.com/whatifshow/membershipGet the What if book: bit.ly/ytc-the-what-if-100-bo...

Today, we're going on a journey 10 quintillion years into the future. At this time, our Universe will look and act completely different. Stars will have died out, black holes will form, and Earth will be a distant memory. What else will happen? Will humanity be able to survive this long? Support us on Patreon: https://www.patreon.com/whatifshow/membershipGet the What If book: http://bit.ly/ytc-the...

We're exploring the explosive collisions of the universe's largest objects. Why stop at two black holes, when galaxies, massive stars, and planets are also in play? Key Moments:01:18 Largest Black Holes06:39 Galaxies10:04 Largest Planets13:10 Largest Stars Support us on Patreon. Get the What if book. Join this channel for perks: YouTube Membership. Interested in sponsoring or collaborating? Email...

Underneath Antarctica's ice, there's a deep, dark secret. Today, we're going to melt all that ice to find out how it would transform Earth. What mysteries lie buried deep under its thick frozen surface? As the ice melts and sea levels rise, what would happen to our coastal cities? And why might this lead to some unexpected diseases? Support us on Patreon: https://www.patreon.com/whatifshow/members...

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 here. Support us on Patreon: here Check out our other channels:How to SurviveAnimalogicAperture T-shirts and merch: here What If elsew...

So you wake up one day and find that you're the only person left in the world. Kind of cool, right? No obligations, no rules, no limits. Go nuts! Actually, go for the exotic fruits first. If your mangos and bananas are imported from overseas, chances are they'll be hard to get to. So eat them while you can, and enjoy every last bite. You might think that with no one stopping you, you could go anyw...

This is the Titanoboa, one of the largest and deadliest snakes ever to exist, which went extinct 55 million years ago. But what if it never happened? 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 sp...

Since the beginning of time, Earth has created life and then wiped out most of it in catastrophic, ultra-destructive moments. Early Earth was already a hostile place, but these savage events were the absolute worst periods in history to be alive. So naturally, I thought it'd be fun to send me there. Obviously, I can't travel back in time, but DigiPeter can. In this video, we'll show you just how y...

Ever wondered what humans or any life would look like if evolution happened on Jupiter instead of Earth? This gas giant has no solid surface, crushing gravity, insane storms, and toxic atmosphere. Could life even emerge there? This distribution was conducted on behalf of Envoy Medical, Inc. (NASDAQ: COCH) and was funded by Outside The Box Capital Inc. after Underknown Inc. was engaged by Outside T...

What if we actually nuke Uranus? No, seriously — what would happen if we sent every nuke on Earth straight to the seventh planet? Would it blow up? Catch fire? Turn into a second Sun? Or just make the solar system’s biggest fart joke come true? Support us on Patreon: https://www.patreon.com/whatifshow/membershipGet the What if book: http://bit.ly/ytc-the-what-if-100-bookJoin this channel to get ac...

There's a needle approaching Earth at the speed of light. A needle? Pfft! That's no big deal, right? Well, unfortunately, it's a very big deal. A needle traveling this fast can cause devastating effects on Earth. But why? What kind of destruction could this tiny little needle cause? And in what scenario would this be possible? Support us on Patreon: https://www.patreon.com/whatifshow/membership Ge...

Elon Musk wants to nuke Mars. What are the consequences? Without nukes, life on Mars might involve living in giant glass domes and growing small portions of food inside. If you venture outside, it would be in a large, clunky spacesuit, limiting your time outdoors. But Mars could end up resembling Earth more closely. How? Support us on Patreon: PatreonGet the What If book: hereJoin this channel for...

Explore the possibilities of swapping Earth's Moon with some of the universe's most intriguing alien planets. What changes would Earth experience with a potentially habitable planet or a massive super-hot giant in its orbit? We'll begin with Proxima Centauri b and progress to more extreme planets like Kepler-22b, 55 Cancri e, WASP-12b, and Beta Pictoris b. Can Earth handle such celestial neighbors...