Humans are built for life on land, but what if evolution had taken a different path and sent us back into the ocean? To imagine this, we need to look at some of the...
Imagine you’re out for a walk on a lovely day, with not a care in the world. The birds are singing, and the sun is shining. Actually, the sun seems brighter than usual...
The Japanese manga series “Attack On Titan” has captivated our imaginations and greatest fears. For those of you who are new to the show, well, it involves...
A scorching hot never-ending day on one side and a permanent frozen night on the other. This is what our planet would be like if it was tidally locked to the Sun. How...
There are 79 known moons of Jupiter. What if we move Earth into its orbit too? How would jupiter’s super strong gravity affect our lives? What would our...
635 light-years from where you are sitting, way out in outer space, lies a planet. The first planet to be discovered inside the habitable zone of a Sun-like star. Its...
It’s invisible, deadly and sucking up every bit of matter in its path. The most massive black hole in the known Universe is headed right toward Earth. What would you see...
Having your business meeting in a forest. Making a sales call on the beach. Or accounting at the top of a mountain. This could be your reality if you could work anywhere...
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...
Throughout history, humanity has faced existential threats like giant asteroids and invisible viruses. Despite the danger, we always bounce back. But how much longer can...
This not-so-little piece of equipment could change astronomy forever. And it could be about to find alien life. Maybe in a matter of days. What is this powerful new tool...
It’s about to get Old Testament here. What if the creepiest, crawliest, most catastrophic member of the Plagues of Egypt made an unexpected housecall? And decided your...
While it might be nice to avoid any dangerous confrontations on your wilderness walks, life without wildlife would be pretty boring. If we didn’t have animals...
The two biggest planets in our Solar System in one telescope view. And catastrophe is imminent. If Jupiter and Saturn suddenly were on a collision course, which of the...
Scroll down to watch our video. It can instantly cause severe burns on your skin. It can even dissolve things like limestone and concrete. This is battery acid. Now...
Flooding, devastation, and disease. What could all these awful things have in common? Rain. And lots of it. We’re not talking April showers here. So, imagine a...
The Solar System may appear calm and well organized, but it is actually the result of billions of years of delicate cosmic balancing. Changing the order of the planets...
If gravity were suddenly gone forever we’d all realize pretty quickly how much we’re taking this universal force for granted.
Our Solar System is plunging into chaos. Better hang on tight. The planets are getting knocked out of orbit. What could kickstart this epic chain of events? How would...
This blue, marble-like planet looks just like Earth. But only five seconds on this hostile death-orb would kill you. Welcome to HD 189733b. This planet is enormous. Even...
