What would happen if the largest country on Earth decided it needs more territory and power? It might just go to war over it. What country could Russia invade first...
Venus, Earth’s closest planetary neighbor is one of the most extreme and hostile environments in the Solar System. With blistering temperatures, toxic clouds, and...
The most deadly predator of the sea spent its day conquering and terrorizing every creature in sight. This is the megalodon. It lived millions of years ago, but...
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...
Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets in the Milky Way alone, don’t you...
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...
Behind you, a colossal hurricane, moments away from making landfall. In front of you, a towering tornado, fast-tracking its way toward the opposing storm. And you...
Dark, mysterious and consuming everything around them, black holes will rip apart anything that passes their event horizons. But could there be more? What would happen...
There are places in the Universe where you could turn to ash, freeze to death or be completely crushed by gravity. And you’re about to visit them all. What...
Imagine a world where we didn’t need any lights, where we could detect diseases just by looking at someone, and literally see right through people’s...
Sixty six million years ago, a massive asteroid impact wiped out about three quarters of all life on Earth, including every non avian dinosaur. But what if science could...
What would happen if you put a couple of physicists in a room with a rope, a box and a black hole? They might come up with a plan to power the Earth for centuries. Black...
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...
What would happen if you flew into a wormhole? Would you ever hear back? Where would you end up? Back in time?Another galaxy? Here’s what would happen if a...
Mars has long captured the imagination as humanity’s potential next home. The red planet looks inviting from a distance, but the reality is far from hospitable. Even a...
In six hours, you, your government, and 124 million other people across 14 states will be tested by the greatest disaster to ever hit the U.S. East Coast. A great wave...
[dx_custom_adunit mobile_id=”RTK_v1lP”] Thomas Edison is one of the most famous inventors in history. He had over 1,000 patents and countless inventions...
All good things must come to an end. Sadly, Homo sapiens’ time on Earth is no exception. And someone would surely take our place as the dominant species. But who? Or...
In a matter of days, a nearby volcano will erupt, spewing debris and lava, and decimating your city. You know that fighting fire with fire usually makes things worse...
The last time the world witnessed a total solar eclipse was in 2017, and its presence delighted enthusiastic sky watchers. But what if, instead of a rare phenomena, a...
