40 km (25 mi) off the coast of Brazil lies an island so dangerous it’s illegal to visit. But rules don’t apply to you. You’re a thrill-seeking...
Watch your head. Some seriously big asteroids are crashing into Earth. What kinds of shapes and sizes do they have? Which ones would have the deadliest impact? And which...
Who doesn’t love a good race? But this time you’re going headfirst at 132 km/h (80 mph) down an icy track. Only 2.5 cm (1 in) separates the hard cold ice from your...
Wouldn’t it be great to have a truly jaw-dropping view? Like windows looking directly into space? Well, it’s time to build your very own cosmic skyscraper. What would it...
No more vast, barren deserts. Because we are going to turn them all into lush, green farmlands. How would we go about bringing new life to hot deserts? How much would...
You’re enjoying a cross-country drive, but you’re getting hungry. As you pull in for gas, you notice some sushi, and it looks delicious. So you buy some to...
What is the most painful thing the human body can experience? Is it the sting of a bullet ant, which packs so much punch that its victims feel like they’ve been...
If you had not two, but three eyes, where would you like your third eye to be ? Sure, the back of your head would be the obvious choice. But what if you placed it...
A blazing ball of fire lies deep underground. It’s Earth’s core. This colossal sphere of molten iron far beneath your feet is what made your life on Earth...
A few minutes in this hot spring would leave you feeling refreshed. But what would happen if you camped out in this foul-smelling pool for 24 hours? How could this water...
What was that? Why is there a hole in my roof? And why am I covered in branches? They’re beautiful. They provide oxygen, and trees remove some harmful gases. But...
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...
