What if Earth’s orbit ventured as far from the Sun as Pluto, and got as close to it as Venus? Would the Sun burn the planet to a crisp at the closest...
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...
With the world’s population growing every year, we need to find ways to produce more food. So, if we could bring dinosaurs back from the dead, would you eat them...
This rogue star has been traveling the Universe. And now, it’s finally entering our Solar System. But this isn’t just any regular star. It’s known as a...
Scroll down to watch the video. Imagine the Mediterranean Sea is disappearing! Old shipwrecks are rearing their ugly heads as the water drains around them, and...
The time for talk is over. Now the biggest countries on Earth are fighting for global supremacy. What would happen if the United States started World War III? Who would...
Experimenting on animals is a dark side of science and research. And most of us try not to think about the animals that experienced the horrors of testing when we buy...
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...
In an effort to fight climate change, the Sahara Desert could be going green… literally. Plans are being made to terraform the entire Sahara desert; changing it...
If time travel is possible, why haven’t we met a single time traveler yet? And if we did meet one, how would we know they weren’t faking it? What would their...
How big is the Sun compared to the Earth? Imagine you were able to shrink the Sun to the size of a basketball. At that point, the Earth would be reduced to the...
What advice would you give your younger self if you could travel back in time?
Don’t you just love fresh air? And feeling healthy? If only that were possible. That deep, relaxing breath you thought you just took, is full of microscopic...
What if Jupiter’s 79 moons weren’t gravitationally bound to Jupiter? What if they became rogue objects orbiting on their own paths around the Sun? Would they still be...
Wouldn’t it be cool to see things through any wall and any door? How about seeing through your own skin? Or your dog? No, no, no, and no. Of all superhero powers...
It’s a small world after all, because today, we’re shrinking Earth to the size of Pluto. But if our planet was this tiny, how would it alter the atmosphere...
Eleven times wider than Earth. Over 300 times more massive. And a million times more terrifying. Jupiter may look like a beautiful ball of swirling clouds, but on the...
Today on What If, we’re going to build the highest bridge on planet Earth. Welcome to the Qinghai-Tibet Plateau, the “Roof of the World.”It’s home to the world’s...
Some of the planets in our Solar System are gigantic. But what if they got even bigger? Let’s go up the planetary size chart and see what kind of chaos doubling the size...
Since 1988, 71% of all the world’s carbon emissions have been produced by just 100 companies. Their operations are largely to blame for the climate crisis we now...
