Some 5 billion years from now, the Sun will expand and become a red giant. And the Earth might be just in the way… If humans were still around then, would we leave...
Some say, “youth is wasted on the young.” So what if it wasn’t? What if you didn’t have to dread aging? Your eyesight failing? Your joints aching...
Things are getting hotter and hotter here on Earth, and global warming has everyone panicking. But let us try a wild idea: what if we took every drop of Earth’s water...
For dinner tonight, you are being treated to the tasting menu of a lifetime. The periodic table of elements. Which elements would you be able to eat? Which ones would...
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...
Imagine what it would be like to have miniature version of our Sun right here on Earth. Would this artificial star provide us with an infinite supply of clean energy...
What if we physically separated the United States and Mexico with a massive engineered waterway? In theory, it could create entirely new trade routes, generate huge...
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...
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...
The jury found you guilty. The judge sentenced you to one of the most dangerous prisons on Earth. And if you’re not careful, you could spend the rest of your life...
Imagine living on the Moon. You’d have the best view of Earth, enjoy bouncing around in zero gravity and living your life as an astronaut explorer. Ah...
From prehistoric predators and ancient pandemics to volcanic winters and asteroid impacts, Earth’s history is filled with moments so extreme they would be almost...
We heard the warnings. But we didn’t listen. Now, we live in a world controlled by artificial intelligence. How did we let this happen? Will we able to survive...
Earthquakes happen more often than many people realize. Smaller quakes of magnitude two or lower occur hundreds of times each day around the world. Stronger earthquakes...
When people think about the first living creature to travel into space, most imagine a human astronaut like Yuri Gagarin or perhaps a chimpanzee. But the true pioneer...
Back in 1846, whaling was one of the most booming industries in the whole world. It was the fifth largest sector in the United States economy, raking in a cool $10...
You probably already know that tanning under UV lights isn’t good for you. But to see just how harmful tanning beds can be, we’re going to crank up your exposure time...
September 1928. A London laboratory sits empty while its owner takes a summer holiday. When Alexander Fleming finally comes back, his workspace is exactly as messy as he...
You start your day hearing wild news. Jupiter has just swallowed Saturn. And it doesn’t stop there. Jupiter is on its way to swallow every planet in the Solar...
Every year, powerful hurricanes sweep across oceans and threaten millions of people. These massive storms can destroy cities, flood coastlines, and leave behind billions...
