A massive earthquake knocks you off your feet. There’s a blinding flash of white, and then you see a tsunami of lava rising on the horizon. A nuclear reaction has...
Imagine you had to experience an apocalypse every day. Volcanic eruptions, tsunamis, asteroid showers. Every day would be a struggle for survival. That’s because...
Sixty five million years ago, a massive asteroid crashed into Earth and ended the age of the dinosaurs. But what if that never happened? What if dinosaurs had continued...
What if you actually did see dead people? Not in a Sixth Sense kind of way, but in an ‘inexplicable mass resurrection’ kind of way? Not in a Walking Dead...
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...
Millions of years ago, the Earth looked very different. A huge landmass, called Pangea, covered about a third of our planet. But about 175 million years ago, the Earth...
Friction is what allows us to move…and to slow down. Friction is how we pick things up …and hold on to them. To be totally honest, there isn’t much we...
Scroll down to watch the video. Long after the invention of airplanes, we still dream of being able to fly on our own. But without wings, our options are kind of limited...
An exoplanet is a planet outside our Solar System. As of March 2020, we’ve discovered over 4000 different ones. So, it sounds like we have some options for our...
Would you take your next vacation to this slimy beach? Well, what if most of our beaches were starting to look like this, because our oceans were quickly being taken...
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...
What causes moonquakes? What would happen if half of our Moon drifted away? Has the Moon already split in half? As friendly neighbors in the sky, the Moon and Earth have...
Do you find the dark unsettling? Have you ever watched the big game on your refrigerator? With all the conveniences of modern living available in your pocket, or at the...
Once a revolutionary invention, it's now filling up our oceans and killing thousands of whales, birds, turtles... Just how much plastic do we have around us?
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...
What if instead of shining brightly for another 5 billion years, the only star in our Solar System turned into a dark and cold remnant? A black dwarf. How long...
Scroll down to watch our video. Where would I be without you, Mr. Mittens? It’s not a meme; it’s a fact: We can’t live without cats. Do you know why...
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...
Titan. The most majestic of Saturn’s many moons. And the most promising for life too. It’s got a beautiful view and liquid lakes on its surface. The only...
Don’t be fooled by these gentle waves. These still waters hide a 20 million year death match between two prehistoric monsters. Grab some popcorn and a snorkel. You...
