Some places in the Solar System have some pretty expensive rain falling on their surface. Let’s see if we could bring those home. What would it take for Earth to...
Maybe it was a little sad to say goodbye to your physical body, but, at least you still have your consciousness, your mind, and your memories stored safely in the cloud...
This is the longest underwater pipe on Earth. It stretches to the bottom of the deepest place on the planet, where only a few people have ever visited. And we’re...
Seawater is salty, undrinkable, and a potential source of planet-saving fuel. Hold up. Fuel? Yes, that’s right. We have the technology to convert seawater into liquid...
Trees are falling, eco-systems are collapsing, and our infrastructure is crumbling. Crops are failing, and water is scarce. Earth is becoming a dead planet. On the plus...
Get your bone flute and gather around the fire. Today on What If, we’re taking you back to the time of woolly mammoths and saber-toothed cats. That’s right...
Imagine if one day you looked up into the night sky, and saw Mars or Saturn where the Moon was supposed to be. That would sure turn our Earth into an alien world. And...
You just fell into a pool with this thing. What is this? How would falling in here affect your health? And could you actually survive this? This is a spent nuclear fuel...
This is our Universe, an ever-expanding network of stars and galaxies. And this is your brain. Don’t they look eerily similar to one another? Why are they so alike...
It’s time to live your ultimate supervillain fantasy. Today, you’re going to unleash your masterpiece of mass destruction. An antimatter bomb. How would you build it...
Did you know that Mars has polar ice caps just like we do here on Earth? With the right technology, they might be our water source should we ever move to the red planet...
Mars didn’t always look like this. It may have once been covered in oceans. But what if we brought all the Martian water back and transformed the red planet into...
40 km (25 mi) off the coast of Brazil lies an island so dangerous it’s illegal to visit. But rules don’t apply to you. You’re a thrill-seeking...
This would be the journey of a lifetime, if you don’t mind riding through molten rock and crushing pressure. What would you see along the way? How long...
Ah, the planet Earth, our beautiful home. We’d like to believe it will be around forever, but what if it isn’t? Aliens, comets, weapons of mass destruction, black...
[dx_custom_adunit mobile_id=”RTK_v1lP”] Welcome to a world of teleportation! Where you can wake up in a remote corner of the world, teleport to work in...
Sulfur hexafluoride, now that’s a mouthful. It sure is! It’s more commonly known as SF6 or deep voice gas because, well, it makes your voice deeper! But...
Let's say, the Earth's magnetic field took a break and allowed strong solar winds to strip away our protective space-blanket. Would Earth instantly turn into a big...
Just north of the Martian equator lies a 45 km (28 mi) wide impact crater that scientists believe may have been the site of an ancient lake. Here at Jezero Crater...
We all know our time here is limited. But we don’t know by how much. Are we better off not knowing when we’ll die? Or would a countdown help us all to lead...
