Since its discovery in 1610 by Galileo, the rings of Saturn have enchanted us for centuries. Remarkably, we’ve visited Saturn before. Stunning photographs taken...
What if we told you that within the next 100 years, humans could merge with AI, control the weather, and even bring extinct species back to life? From space exploration...
Imagine you had to experience an apocalypse every day. Volcanic eruptions, tsunamis, asteroid showers. Every day would be a struggle for survival. That’s because...
Deep under Europa’s thick icy surface lies an ocean larger than all of Earth’s oceans combined. But it’s pretty useless way out there. Let’s ship that water back to...
Right now, there are 1,500 active volcanoes on Earth. Just one of those volcanoes could do catastrophic damage. But at midnight tonight, every volcano on the planet is...
They’re big, they’re scary and they can carry cars, cows and even a couple of houses. They can range from a simple dust storm to a force that can wipe out an...
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...
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...
Imagine if we could collect the energy out of thin air. And I mean it quite literally. You know how you were taught that a vacuum is nothing but empty space? That...
Scientists have pieced together a pretty clear picture of what life was like on Earth thousands, even millions of years ago. If you fast-forward one million years from...
Mount Hua, China This hike leads to the South Peak of Huashan, one of the Five Great Mountains of China. Its summit stands at about 2,155 m (7,100 ft), and the infamous...
Venus, the second planet from the Sun, is often referred to as Earth’s twin due to its similar size and gravity. However, its surface conditions are extreme...
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...
Legend has it that somewhere beyond Neptune and Pluto, there is a ninth planet, with a mass that is five times greater than Earth’s. Planet Nine, also known by its...
Invisibility is no longer just a topic of fantasy or science fiction; several companies around the world have developed technologies to make it a reality. Some use a...
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...
Scientists have discovered many planets similar to Earth beyond our solar system. These exoplanets can be up to 10 times larger than Earth, which might be ideal for our...
In the center of our galaxy, the Milky Way, there is a supermassive black hole feeding on nearby stars. It’s called Sagittarius A*. And if a giant gravitational...
Thousands of light-years from Earth, there could be another planet hospitable to life. Kepler 69c. And you’re about to travel to this alien world to see that life...
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...

