What If: Science, Theory, and Possibilities
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What If the Largest Objects in the Universe Collided?
In this episode, we're going to smash big things into each other. Why stop at smashing two gargantuan black holes, when you can do the same with the most massive stars, the largest planets, and even…
What If Theia Never Crashed into Earth?
Roughly 4.5 billion years ago, a Mars-sized protoplanet called Theia slammed into early Earth, an event believed to have formed the Moon and shaped life as we know it. But what if that impact never…
What If You Jumped Into Saturn?
Saturn is famous for its magnificent rings. But did you know other gas planets like Jupiter, Uranus, and Neptune also have rings? Saturn's are just the largest and most visible. Saturn radiates twice…
Mating with an Alien
It's a beautiful night. Just you, a bottle of wine, and your partner drifting through the cosmos in a UFO. As you caress their green skin, you know tonight's the night you're mating with an alien.…
What If We Found Alien Life on K2-18b? The Super-Earth Exoplanet!
Imagine discovering life beyond Earth right on a distant exoplanet! In this video, we explore K2-18b, a Super-Earth located 124 light-years away, in the habitable zone of its star. Could this alien…
What If the Sun Became a Red Giant?
The Sun won’t shine forever in its current form. When it runs out of hydrogen, it will expand into a red giant—fundamentally reshaping the Solar System.Support us on Patreon:…
What If You Fell Into the Biggest Void in the Universe
It's a place where nothing exists. A place without stars, planets, or galaxies. A place where you wouldn't meet a soul for hundreds of millions of light-years. This place is called the Boötes Void,…
What If Quetzalcoatlus Were Still Alive?
A terrifying shadow ripples over the city as a gigantic prehistoric beast soars over the towers, moving faster than the cars on the freeway, hunting. And it's not alone; it hunts in a pack. This…
A Day Across the Solar System: What Could Go Wrong?
Help us win a Webby by voting here.Support us on Patreon: PatreonFrom the sun going rogue to unstoppable infections and nature’s wildest disasters—today we explore every way humanity could meet its…
Dying in the Most Terrifying Places in the Universe
Last year, you loved watching me push the limits of science in the most extreme environments imaginable. In the name of discovery and exploration across every planet in our Solar System, the WHAT IF…
What If You Dug a Hole Through Mars?
What if you started digging and never stopped, until you broke through the other side of Mars? Would you fall forever? Would Mars’ gravity crush you? Or would the planet’s core stop you long before…
What If Earth and Moon Switched Sizes?
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…
What If We Nuked Kepler-22b?!
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…
What If Humanity Became a Type 7 Civilization?
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…
What If Exoplanets Orbited Our Sun?
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…
Making Proxima Centauri B Habitable
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…
What If Every Asteroid Hit Earth at Once?
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:…
What If the Sun Became a Black Hole?
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:…
What If Quetzalcoatlus Never Went Extinct?
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…
What If You Fell into Saturn?
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…
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What If: Science, Theory, and Possibilities has published 376 episodes since October 2024, covering topics in Education, History.
What If: Science, Theory, and Possibilities is currently highly active with new episodes daily. Average episode length is 10m.
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