No one knows exactly what to expect if we encountered other forms of alien life. Would they talk like us? Look like us? Or would they be completely different? What if...
Sixty six million years ago, a colossal asteroid crashed into what is now the Yucatán Peninsula in Mexico. It triggered the extinction of the dinosaurs and wiped out...
Black holes are dense and scary. They suck up everything in their way. Their gravity is so strong it bends light and warps time. But what if I told you we might have...
Artificial intelligence is no longer just a concept from science fiction. Today’s AI systems are rapidly advancing, with some already matching the intelligence of famous...
Antimatter is the most potent fuel source known to humanity. And it could be the secret to faster-than-light space travel. But where in the Universe would we find...
Imagine, it comes out of nowhere. A blinding flash, spanning the entire globe. It lasts only a few seconds, but when it’s over, everyone’s memories have been...
Today on What If, we’re going to build the highest bridge on planet Earth. Welcome to the Qinghai-Tibet Plateau, the “Roof of the World.”It’s home to the world’s...
Unlike Earth, which is orbiting the Sun, there are billions of rogue planets roaming the Milky Way not bound to any host star. One of them has been spotted on the edge...
Intense rainfall. Winds of 120 km/h (75mph) or higher. Storm surge. These are the signs of a hurricane. During its reign of terror, a hurricane can release as much...
If you ever find yourself falling into a volcano, there are a couple of things you should know. First off, when you reach the bottom, the magma’s not going to...
During Earth’s early days, a gargantuan collision left our planet spinning at an angle. That slight incline allowed life as you know it to flourish. But what if this...
Whether you enjoy rock music, or pop, or if classical or jazz takes your fancy, we all love music. But what if we had never invented music? No, rhythms, no melodies...
[dx_custom_adunit mobile_id=”RTK_v1lP”] If you were exposed to the harsh depths of space, you’d lose consciousness in 15 seconds, and be dead within 30...
Space tourism is happening now. Soon enough, you might be able to take your own vacation into the cosmos. What would your travel experience be like? What would you see...
A total solar eclipse is one of the most breathtaking spectacles in the universe. While we experience them on Earth roughly every year and a half, these events happen in...
The Solar System is home to a remarkable range of planets, from tiny rocky worlds to massive gas giants. But just how big are these planets really? To put it into...
Would you spend a night at the top of the first tower to space? At 100 km above sea level, it would be the highest structure that humans have ever built. This tower...
Watch your head. Some seriously big asteroids are crashing into Earth. What kinds of shapes and sizes do they have? Which ones would have the deadliest impact? And which...
Deep beneath the Earth lies a mysterious and powerful force. A wellspring of nuclear energy which could one day rip us apart. Many scientists have found clues that...
When we think of space exploration, images of rockets, astronauts, and the Moon often come to mind. But humanity’s journey beyond Earth has left behind some truly...
