[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...
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...
President Donald Trump has tested positive for COVID-19. Trump is 74 years old, and not to mention overweight. Advanced age and obesity are two factors that put someone...
This would be the journey of a lifetime, if you don’t mind riding through molten rock and crushing pressure. What would you see along the way? How long...
Birthday balloons falling limply to the ground. Satellites, medical scanners and TVs fading to black. And twinkling stars in the night sky disappearing one by one. All...
You’re in the Ghostbusters universe. With a quick stomp, demons are as good as gone. So how would life change if you could bust ghosts in real life? Would you need...
A black hole is on a collision course with our Sun. And there’s nothing left for you to do except sit back and watch the destruction of our entire Solar System. How...
The Solar System may appear calm and well organized, but it is actually the result of billions of years of delicate cosmic balancing. Changing the order of the planets...
Chaos overtakes the streets, and the news spreads like wildfire. Sea levels have suddenly risen 500 meters, and giant waves are headed your way. Where could you hide to...
Alright, I think it’s time for a change-up. Let’s do a little spring cleaning, and redecorate our Solar System. Now, I know you’re a big fan of the Moon, but it’s so...
Millions of years ago, this giant sea scorpion terrorized the ocean. It was the apex predator of its time. So what if we brought it into the modern-day and had it fight...
So, what exactly is hot ice? Well, it’s simple. It’s made by boiling baking soda, vinegar, and a little bit of water. From that, you get sodium acetate...
That’s no moon. It’s a space station. The enormous, planet-killing kind, designed for only one thing — to bring order to the galaxy. It’s Star...
You have a weight problem. And it’s not just you, it’s everyone! That’s just how life is on Earth 2.0. Double the density, double the gravity...
Imagine waking up one morning to find our Sun replaced by a cosmic powerhouse far stranger than anything we have seen. From giants that could swallow planets whole to...
Imagine if one day you looked up into the night sky, and saw Mars or Saturn where the Moon was supposed to be. That would sure turn our Earth into an alien world. And...
It’s invisible, deadly and sucking up every bit of matter in its path. The most massive black hole in the known Universe is headed right toward Earth. What would you see...
Space tourism is much closer than you may think. The International Space Station will soon retire from its successful run through low Earth orbit. But humanity’s...
In space, no one can hear you scream. But just because sound can’t travel in the vacuum of space doesn’t mean that the planets and our Sun don’t make noise. What would...
Ahh, spring has sprung. Robins are chirping. Flowers are blooming. Yikes, it’s getting a little windy out. Wait a minute. Do you hear that? Is it just me or does it look...
