Something strange is happening on the outskirts of our Solar System. It could be a large, mysterious planet. Or, it could be a black hole. How big would this black hole...
Prehistoric Australia was not the sunny, laid back continent we know today. Between 126,000 and 12,000 years ago, during the late Pleistocene era, humans shared the land...
Rise. and. shine! Get up and seize the day! You can do anything under the sun…when the sun powers everything. Your phone, your home, and all that’s in...
This is the Mullaperiyar Dam. It has been around since well before your grandparents were born. And it could fail at any moment now. What could cause the dam to collapse...
They can lift 5,000 times their body weight. They have armies in the thousands. And they outnumber us a million to one. But ants are tiny, right? Yeah, that’s not going...
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...
Family planning. It sounds sensible, but it’s extremely controversial. At least, in some countries. What if it wasn’t? What if the world recognized a...
How long would it take for the world’s largest rainforest to burn down? If we don’t do anything to stop it, we’ll soon find out. The Amazon rainforest...
In the shifting geopolitical landscape of the Middle East, one factor remains a constant point of concern for international security analysts: Iran’s missile program...
The Earth may not be our home forever. Eventually, we may have to leave. What if instead of finding a potentially habitable exoplanet light-years away, we stayed in our...
Greetings, future moonling. That’s right. You are among the first generation of children born on the Moon. How would your birth compare to every previous human’s...
Returning for a second term in office, President Trump promised to crack down on illegal immigration using ICE – the U.S. Immigration and Customs Enforcement...
Our planet has seen this before. Its ice has already melted. Water levels have risen. Ocean currents have already stopped. The last time this happened was 13,000 years...
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...
What if all the oceans disappeared from the Earth’s surface? What would a world with no high seas look like? What would happen to all the creatures that...
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...
The time for talk is over. Now the biggest countries on Earth are fighting for global supremacy. What would happen if the United States started World War III? Who would...
What are the ingredients for an industrial revolution? It’s simple! Take some new energy sources, add a dash of cutting-edge communications technology, and...
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...
America’s current President has repeatedly suggested and called for Canada to become the 51st state of America. While the Canadian government has forcefully...
