On June 23, 2018, twelve boys from a youth soccer team known as the Wild Boars and their assistant coach entered Thailand’s Tham Luang cave system after soccer practice...
At any moment of any day, the odds are that someone around the world is having an orgasm. We don’t really like to talk about them, but they’re an integral...
This giant rock lights up the night and can even change colors. So what would we do without it?
Climbing the world’s tallest mountains is a daring adventure. But you’re about to make an epic extraterrestrial trek on the biggest mountain in the entire Solar...
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...
Legend has it that somewhere beyond Neptune and Pluto, there is a ninth planet, with a mass that is five times greater than Earth’s. Planet Nine, also known by its...
Life on Earth began in a way that still boggles the mind. Around 4.5 billion years ago, a chemical process called abiogenesis occurred, where life emerged from non-life...
Today on What If, we’re taking Jupiter’s deadly gases and unleashing them on Earth. Where could you be safe from these toxic winds? How would you breathe...
There’s a giant, peanut-shaped object orbiting the Sun, and it’s name is Halley’s comet. Like all comets, it’s a cosmic mashup of frozen ice, gases, and dust...
The mega-earthquake. It’s coming. We don’t know exactly when or how big it’s going to be, but it’s coming. It will be chaotic, and with millions...
On the morning of March 20, 1995, millions of commuters packed into Tokyo’s subway system just as they did every weekday. Trains arrived on schedule. Office...
Would you ever venture into the ocean if you knew this creature could be lurking beneath you? It’s twice the size of a T. rex, its jaws are big enough to crush...
Don’t you just love fresh air? And feeling healthy? If only that were possible. That deep, relaxing breath you thought you just took, is full of microscopic...
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...
You’ve seen politics and national borders change all the time, but have you ever witnessed a continent literally breaking apart? Well, it’s possible, and...
Wouldn’t it be great to have a truly jaw-dropping view? Like windows looking directly into space? Well, it’s time to build your very own cosmic skyscraper. What would it...
Imagine that the Sun is on the verge of exploding. Or that a planet-killing asteroid is headed our way. Or maybe you just want to take the entire planet on a joy ride...
Billions of years in the future, the Sun will begin to die. And this is what our planet would look like. But what if we turn things up a notch or two right now...
New geological models and updated hazard assessments from the U.S. Geological Survey and leading universities are once again raising concern across the American West...
When you think of threats from outer space, you might picture deadly solar flares, planet destroying asteroids, or even a hostile alien invasion. But scientists warn...
