The Sun generates its energy through a process called nuclear fusion. In its core, hydrogen atoms fuse together under the forces of extreme pressure and heat to form...
Humans are built for life on land, but what if evolution had taken a different path and sent us back into the ocean? To imagine this, we need to look at some of the...
[dx_custom_adunit mobile_id=”RTK_v1lP”] What if your reality was nothing more than a complex computer simulation? And if you were just a program on someone...
Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year, the possibility continues to grow. But...
A giant asteroid is headed our way. But no, it won’t hit the Earth. This asteroid is about to slam into the Moon and crack it right in half. What would it be like...
We visit a lot of planets here on WHAT IF, but K2-141b is the most extreme one yet. Are you ready to jump on board this one-way space shuttle? If you’d rather stay...
Buckle up as we submerge you in the most dangerous things known to humanity. From painful stings to severe frostbite, this journey could get fatal quick. Can you make it...
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...
What if one side of the Earth always faced the Sun, while the other side was forever shrouded in darkness? Just how hot would it be on the bright side? And how cold...
Human beings have existed for 300,000 years and have managed to live in many unstable environments. We’ve survived ice ages, devastating pandemics and world wars...
These balls represent one of the strangest phenomena currently taking place in our Universe. Each ball symbolizes one of 100,000 galaxies — including our own...
Imagine a dry desert with endless sand dunes transforming into a lush, green tropical paradise before your eyes. This is the ambitious vision of terraforming the Sahara...
Every 75 years, a ball of fire streaks across the sky. But that’s no fireball. It’s Halley’s Comet. And you’re about to hitch a ride on it. Get...
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...
A massive asteroid just hit Earth, right in the middle of the Atlantic Ocean. Thanks to NASA’s new infrared telescope, we were able to detect it and prepare for the...
If you had a device designed to freeze time for everything but you, life wouldn’t be anything like what you’d expect. You wouldn’t catch up on sleep...
[dx_custom_adunit mobile_id=”RTK_v1lP”] 55% of the world’s population live in cities. By 2050, that’ll be two thirds of the world’s...
The jury found you guilty. The judge sentenced you to one of the most dangerous prisons on Earth. And if you’re not careful, you could spend the rest of your life...
Invisibility is no longer just a topic of fantasy or science fiction; several companies around the world have developed technologies to make it a reality. Some use a...
