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...
The biggest planet in the Solar System. And the smallest star in the known Universe. Today, they are on a collision course. And Earth might not survive this. Meet the...
What would really happen if you went into space without a suit?
Since the beginning of time, Earth has created life and then wiped out most of it in catastrophic, ultra-destructive moments. Starting with the very first extinction...
Imagine looking up into the night sky and seeing not one but 79 different moons beaming back at you. What would this new night sky look like? How would this affect the...
[dx_custom_adunit mobile_id=”RTK_v1lP”] Thomas Edison is one of the most famous inventors in history. He had over 1,000 patents and countless inventions...
If the Earth had an edge, I hope it would look like this. The edge of a flat Earth. I know, I know, we’ve talked about it before. But there’s something...
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...
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...
Io. One of Jupiter’s four largest moons, it’s a world that seems ripped straight from a science fiction nightmare. Its surface is a chaotic, constantly shifting...
Scroll down to watch the video. It’s the largest star that we’ve ever discovered: UY Scuti. And if it were to replace our Sun, it would change a lot more...
People are fighting over it in grocery stores all around North America. Some are selling it to make an immense profit. No, this isn’t the scene of some crazy...
Did you know that Mars has polar ice caps just like we do here on Earth? With the right technology, they might be our water source should we ever move to the red planet...
Watch your head. Some seriously big asteroids are crashing into Earth. What kinds of shapes and sizes do they have? Which ones would have the deadliest impact? And which...
What Earth do you live on? A round one? Flat one? Maybe your world is resting on the back of a huge cosmic turtle? What about a hollow Earth? Just a planet’s shell...
Scientists may have identified an exoplanet with the potential to support life, located 120 light-years from Earth. The planet, known as K2-18b, is classified as a Super...
Imagine, it comes out of nowhere. A blinding flash, spanning the entire globe. It lasts only a few seconds, but when it’s over, everyone’s memories have been...
Nuclear weapons are the most powerful and frightening tools ever created by humanity. With over twelve thousand warheads spread across the globe, these devices hold...
A rogue star is headed straight for our Sun. If these two stars slam into each other, it could spell the end of all life on our planet. How could a rogue star end up in...
What if humanity could no longer live on Earth? Perhaps a catastrophic event forced us to find a new home among the stars. Mars often comes to mind as a close option but...
