They don’t call this creature the assassin for nothing. It can kill you with a single touch. Its body is covered in sharp spines that will inject you with potent...
Welcome to the longest staring contest of your life. You’re about to go seven days without blinking. What device would keep your eyes forced open? How long would it take...
Can you imagine falling 10,000 meters (33,000 ft) from a plane, being trapped underwater for days or surviving a massive radioactive discharge? All this seems like a...
The gruesome images of war filled you with rage. You can’t stand injustice and won’t stay arms crossed. Thousands of people feel the same way. Together you...
Uncontrollable itching. Sleepless nights. Incredible stench. Uh oh, it looks like you could have a head lice infestation. Where would you get the lice from? How fast...
During Earth’s early days, a gargantuan collision left our planet spinning at an angle. That slight incline allowed life as you know it to flourish. But what if this...
OK, if you’re a regular viewer of What If, you know we’ve already explored the idea of finding silicon-based alien life. But what if we didn’t have to...
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...
Welcome to your worst nightmare. You’ve lost your balance and fell into a pool of slimy parasitic animals that eat only one thing. Your blood. What would happen if...
Before you cannonball into that refreshing pool, look before you leap. It could just be filled to the brim with blood-sucking lampreys. And they’re hungry. How would...
Absolute zero is the lowest possible temperature in the Universe. Nothing gets colder than that. So if the entire Earth suddenly cooled down to the most frigid...
What’s the best place to put solar panels? Close to the Sun, of course. And in this scenario, we’re going to build the most efficient solar farm possible...
