Imagine this: a tiny needle hurtling toward Earth at the speed of light. At first glance, it might sound like no big deal. After all, it’s just a needle. But in reality...
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...
There are some things you just can’t live without. Like gravity, oxygen, the Sun’s warmth. And we’re about to take those vital things away from you...
See that strip of stars splashed across the night sky? That’s our home galaxy, the Milky Way. You can see it from Earth because we live on its very outskirts, far...
The Amazon rainforest stretches for millions of kilometers, hiding ancient tribes, animals and maybe something else. What if under this mysterious canopy lies an...
While it might be nice to avoid any dangerous confrontations on your wilderness walks, life without wildlife would be pretty boring. If we didn’t have animals...
Scroll down to watch the video. Imagine if we could control earthquakes and tsunamis to generate power. Or maybe even terraform every planet in the solar system. These...
Are all of your memories real? Did everything happen the way you remember it? What if somebody filled your brain with memories that aren’t yours? Would you be able...
The delicate balance of the entire Solar System exists in a gravitational dance between planets. Swap the orbits of two of them and you could end up wreaking all kinds...
Beneath the Earth’s surface lies the core, a scorching sphere of iron surrounded by a layer of molten metal. Temperatures at the core reach approximately 6,000°C...
It might sound like a scene from a science fiction movie, but the threat of an asteroid hitting Earth is more realistic than you might expect. One asteroid in...
In the time it would take you to order an extra larger everything pizza and have it delivered to your front door you could theoretically jump through that tunnel...
Returning for a second term in office, President Trump promised to crack down on illegal immigration using ICE – the U.S. Immigration and Customs Enforcement...
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...
Did you know that a single snake bite can kill an adult elephant in just a few hours? And if you’re not careful, snake venomc can kill you in only 15 minutes. But...
Today on What If, we’re taking Jupiter’s deadly gases and unleashing them on Earth. Where could you be safe from these toxic winds? How would you breathe...
Why does the Earth have to be either round or flat? What if there could be a happy middle ground? Welcome to your very own polyhedron Earth. What would this Earth look...
It might be the worst date on your weekly calendar, but it’s a date that you definitely don’t want to stand up. Garbage Day. You tie it all up into...
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...
Under extreme circumstances, humans can often pull together to overcome great odds. But when confined in a tight space with each other, well, we may not be at our finest...
