Get your bone flute and gather around the fire. Today on What If, we’re taking you back to the time of woolly mammoths and saber-toothed cats. That’s right...
Dinosaurs often steal the spotlight when it comes to terrifying prehistoric creatures, but they were far from the only fearsome beasts to roam the Earth. From enormous...
By the year 2035, NASA plans to send humans to Mars. But it would be about a nine-month trip with our current rocket technology. However, in the not-so-distant future...
Eight legs, eight eyes, sharp fangs, and bullet-proof webs. They’re hairy, they’re scary, and now, they’re human-sized. As many as 427 million people...
About 65 million years ago, a mass extinction event occurred, wiping out more than 75% of all species on Earth. There have only been 5 mass extinctions in our...
Space has lots of different things in it. Planets, nebulas, asteroids, the list goes on. So what would happen if we got rid of a single planet? Specifically, our largest...
One billion years into the future, you might imagine a world full of artificial intelligence, interstellar travel, and space colonies. Maybe we’ll see the end of...
To meat, or not to meat: that is the hotly debated question. How would life on Earth change if we stopped eating all things animal?
Could we all just be a part of our planet’s life-support system? Even from space, you can see that the planet Earth is full of life. When you take a closer look...
What advice would you give your younger self if you could travel back in time?
We’ve talked about settling on the Moon, Mars and even Venus. But how about somewhere that’s cold, dark and smells like farts? Uranus. What would conditions be like on...
Imagine what it would be like if you could wake up in your New York City apartment at 7:00 a.m., and make it to your job in London, England by 9:30 in the morning. That...
When it comes to planets in our Solar System’s habitable zone, one world is too close to the Sun, another is too far and Earth is just right. But maybe things...
The most deadly predator of the sea spent its day conquering and terrorizing every creature in sight. This is the megalodon. It lived millions of years ago, but...
Neptune is big, it’s blue, and it is a planet that can tear you apart if you happen to drop into one of its massive, Earth-sized storms. While it might look calm and...
[dx_custom_adunit mobile_id=”RTK_v1lP”] There are sunsets on other planets even more spectacular than the ones on Earth. What if we could see not just one...
Despite being “black” and a “hole”, a black hole is not a dark, empty space. In his theory of relativity, Einstein predicted how black holes are...
Millions of years ago, all the continents were one. Waiting to crack and spread into the world we know today. Thing is, Earth’s ground is constantly moving. So how about...
The ground around the Empire State Building appears to be sinking. This historic landmark is about to get lost in a giant pit. And you will be coming down with it. If a...
There are over one million volcanoes on our ocean floor. And all of them suddenly started spewing out red-hot molten rock. The ocean is filling with lava. And nothing...
