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...
It’s been 100 Earth years since you settled on Mars. You’ve been through pain, loneliness and a lot of hard work. And now Mars is the new promised land everyone...
One task, you have. Find Baby Yoda, you must. The tracking fob, guide you it will. Where, begin your search, would you? It sounds like an easy task. But we...
Are you ready for the sun to die?
Imagine Earth covered in thick sheets of ice. And sea levels so low you could walk to a different continent. This is what our planet would look like during an ice age...
Life on Mars might be like this. You’d live in giant glass domes, and grow small portions of food inside. And if you happen to go outside, it would be in your big...
Are you one of those people who hate these little crawling things? Or maybe these ones with stingers creep you out more?
The Permian Period, which lasted from about 299 to 252 million years ago, was one of the most fascinating and dangerous times in Earth’s history. It ended with the...
Imagine landing on a planet where the surface looks frozen but burns hotter than your oven. Welcome to Gliese 436b, one of the strangest known planets in the universe...
The sound of trickling water might seem harmless, even peaceful. But in the polar regions, this sound is a sinister warning of an event that could swallow up the arctic...
Seawater is salty, undrinkable, and a potential source of planet-saving fuel. Hold up. Fuel? Yes, that’s right. We have the technology to convert seawater into liquid...
These balls represent one of the strangest phenomena currently taking place in our Universe. Each ball symbolizes one of 100,000 galaxies — including our own...
I hope you’ve packed some ice skates for your next trip out to sea because the oceans have completely frozen over. What conditions could cause this massive...
Swipe down for full video story! Mosquitoes are the deadliest animals on Earth, responsible for nearly one million human deaths each year. They transmit diseases such as...
[dx_custom_adunit mobile_id=”RTK_v1lP”] Take a look at the two most popular energy sources around the world. Oil. Coal. Dirty. Scary. By some estimates...
Earth is the only life-supporting planet in our Solar System. Until now. Today, we’re bringing Kepler 22-b into our planetary neighborhood. Where would this planet...
Underneath Antarctica’s vast ice sheet lies one of the planet’s greatest mysteries. What would happen if every last piece of ice on the southern continent suddenly...
They’re not the biggest falls on Earth, not by a long shot. But they’re certainly among the most famous. Niagara Falls attracts millions of visitors from...
In 2021, the U.S. government released a report of alien sightings over the past 20 years. This report featured 144 sightings, mostly witnessed by military aviators. Only...
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...
