What If: Science, Theory, and Possibilities

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...

Ever had a freshly cooked steak delivered straight from the International Space Station? It's not going to be what you might expect. Is it possible to fry a steak in space? How long would it take to give it that perfect crust? And what side dish should you go with? Support us on Patreon. Get the What If book. Join this channel to get access to perks: Membership. Interested in sponsoring our episod...

Are cubic planets possible? Could humans live on a cubic world? How would our climate change? How would gravity be affected? Could we stand it? Support us on Patreon: Patreon Get the What If book: The What If 100 Book Join this channel to get access to perks: YouTube Membership Interested in sponsoring our episodes or collaborating? Email us: contact@underknown.com Our other channels: How to Survi...

In this episode, explore how your voice would change on each planet in our Solar System. Discover the eerie silence or the deep, scary tones you might experience from the smallest worlds to the colossal gas giants. If you want to learn more about Envoy Medical (NASDAQ: COCH), go to: Envoy Medical The information presented is for general information purposes and may not be representative of all pat...

What if humans detonated a nuclear device on the Moon? Would Earth be in danger? Would the Moon change forever? Support us on Patreon: patreon.com/whatifshow/membership Get the What if book: bit.ly/ytc-the-what-if-100-book Join this channel to get access to perks: youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join Interested in sponsoring our episodes or collaborating? Email us: contact@underknown....

What would really happen if you cut out carbs and fats and lived on protein alone? Could you survive on protein only? This distribution was conducted on behalf of Immix Biopharma, Inc. (NASDAQ: IMMX) and funded by Outside The Box Capital Inc. and/or affiliates after Underknown Inc. was engaged by Outside The Box Capital Inc. to advertise for Immix Biopharma, Inc. (NASDAQ: IMMX). For our full discl...

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/ Support us on Patreon: https://www.patreon.com/whatifshow/membership Check out our other channe...

This is not some DVD floating in space. It's a megastructure that might one day become humanity's home. 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 sponsoring our episodes or collaborating? Email...

Jupiter may be the biggest planet in the Solar System, but its days are numbered. Because today, we're using Earth's biggest, baddest bombs to blow the gas giant into oblivion. How many nukes would you need to do the job? What obstacles would these rocket-bound bombs encounter on the way? Would one nuclear explosion ignite the entire planet? What are Kirkwood gaps? Get a free What If Top 10 book w...

A black hole is approaching Earth. Instead of waiting for destruction, we plan to obliterate it by launching everything we have at it. Support us on Patreon: patreon.com/whatifshow/membership Get the What If book: bit.ly/ytc-the-what-if-100-book Join this channel for perks: youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join Interested in sponsoring or collaborating? Email us: contact@underknown.com...

This simulation explores the catastrophic impact on Earth if the interstellar asteroid Oumuamua were to collide with us. This unique asteroid, shaped like a cigar, is the first interstellar object ever recorded, meaning it hails from beyond our Solar System. A collision with Oumuamua would create a city-sized crater, obliterating everything nearby. Yet, of all interstellar rocks, Oumuamua isn't th...

Ever since we figured out we live on a rock drifting through space, humans have dreamed of settling on another planet. But where would we go? There's no livable alternative in our own Solar System. Mars, so cold and dry, is disappointing. The only choice is to leave our Solar System and search for the next planet in interstellar space. Luckily, scientists have discovered a likely candidate: Kepler...

Something is very wrong with our Sun. It’s turned into a spinning lighthouse of death. What would make the Sun so much more deadly than usual? Would there be any way life on Earth could survive this? Why would it feel like you're stuck at the bottom of the ocean? What's a pulsar planet like? Would there be eternal darkness on Earth? Will Earth still be habitable? Timeline of Key Moments: 00:00 Wha...

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 Get the What if book Join this channel to get acc...

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. Check out our other channels: How to Survive Animalogic Aperture T-shirts and merch available here. Follo...

If suddenly, you started to shrink in size, how long would it take until you became as small as a particle of dust? Why would things look different to your eyes? And why should you stay away from these grabby things? Today, you'll be scaling down by 1 cm every second, from human-sized all the way to the size of a subatomic particle. Support us on Patreon: https://www.patreon.com/whatifshow/members...

Being twice as massive as all the other planets in the Solar System combined, Jupiter has astronomical pressure. This planet is basically a gigantic ball of hydrogen and helium. It doesn't have a solid surface you could step on. You'd fall all the way through its atmosphere, although it wouldn't be that long of a fall for you. Support us on Patreon: https://www.patreon.com/whatifshow/membershipGet...

Forget flat Earth. Let me introduce you to Earth shaped like a pizza. It might look delicious. But it would be a scorching, violent, literally breathtaking place. Support us on Patreon: patreon.com/whatifshow/membershipGet the What if book: bit.ly/ytc-the-what-if-100-bookJoin this channel to get access to perks: youtube.com/channel/UCphTF9wHwhCt-BzIq-s4V-g/join Interested in sponsoring our episode...

Protect your data for only $2 a month with CyberGhost VPN A small but incredibly fast unwanted guest is about to swing past Earth at the speed of light. This is the tiniest black hole in the Universe. Despite its small size, could it rip our planet apart? We're sending black holes through Earth, from the tiniest black hole just 2 cm (3/4 in) in diameter to the most massive, stupendously large blac...

Humanity’s nuclear arsenal is capable of destroying all life on Earth repeatedly. Maybe it's time we dispose of it far away. We might want to inhabit other planets in the future, so how about our closest star? How many nukes could we throw at the Sun? What would be the cost of this mission? And could we accidentally destroy our only source of daylight? Support us on Patreon: PatreonGet the What If...