What if the Moon suddenly began getting closer to Earth? To the point where it was on a collision course with our planet? Would the Earth survive the crash?
With nearly eight billion people on the planet, things can feel pretty crowded. Let’s make things a bit tighter by housing every single person on Earth in one giant...
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...
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...
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...
Located in the United States, one of the world’s largest volcanoes is gearing up to explode. It’s known as the Yellowstone Volcano, and it’s not just...
What if we took everything that sustains life on this planet, and shrunk it down to one small bubble? Earth’s biosphere stretches about 20 km (12 mi). From the...
Imagine that the Sun is on the verge of exploding. Or that a planet-killing asteroid is headed our way. Or maybe you just want to take the entire planet on a joy ride...
Instead of falling apart after a single crash, now we all have cars that are completely indestructible. Would there be fewer fatalities caused by car accidents? What...
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...
In the beginning, there was nothing. Well, except for you. And the Big Bang. What would the first moments of the Universe be like? What would happen over the next...
Imagine never being able to dream of landing on Mars or traveling to Saturn. Not because it’s impossible to get there, but because they didn’t exist. Because...
Congratulations, you’ve taken the seven-month-long journey and have landed on Mars. And it turns out, you’re the first person. Better start getting the human...
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...
Technically speaking, this marine reptile wasn’t a dinosaur, although it sure swam the Earth alongside many of them. Styxosaurus lived 70 to 85 million years ago, in the...
America’s current President has repeatedly suggested and called for Canada to become the 51st state of America. While the Canadian government has forcefully...
For decades, relations between America and North Korea have run from tense highs to some interesting lows. But what happens when two superpowers decide that enough is...
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...
Would you spend a night at the top of the first tower to space? At 100 km above sea level, it would be the highest structure that humans have ever built. This tower...
The Arctic might soon become completely ice-free. And when all of the ice is gone, the world won’t be the same. But what if I told you there was a way to prevent...
