Imagine a tornado spinning over an erupting supervolcano. The result would be catastrophic beyond comprehension. While such a collision is incredibly unlikely, exploring...
A small but incredibly fast unwanted guest is about to swing past Earth at the speed of light. Yeah, this is the tiniest black hole in the Universe. But despite its...
Today, people with Down syndrome are generally treated with love and respect from those around them. And despite having an intellectual disability, people with Down...
What would happen if we tried to dump all our trash on Jupiter? It might sound like a perfect solution, but the reality would be far more dangerous than you think. A...
Our solid core has given us life as we know it. But what if Earth was hollow?
Swipe Down for Full Video Story Imagine a tiny needle traveling toward Earth at the speed of light. At first glance, it might seem harmless, since it is so small...
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...
[dx_custom_adunit mobile_id=”RTK_v1lP”] If you could travel faster than the speed of light, where would you go? Mars? The nearest star system Alpha Centauri...
Swipe Down for Full Video Story Humans are perfectly adapted for life on land, but what if evolution had pushed us back into the oceans instead? Over millions of years...
The world you know no longer exists. Your family, friends, and neighbors are gone. Outside, horrific zombie-like creatures roam the streets. And if you breathe in their...
Imagine the Sun releasing a burst of energy so powerful it could knock out power grids, stop airplanes mid flight, and push our world back into the dark ages. This is...
Venus is the second planet from the Sun and our nearest neighbor. At its closest approach, Venus is mere 40 million km (25 million mi) away from us. After just four...
Space tourism is happening now. Soon enough, you might be able to take your own vacation into the cosmos. What would your travel experience be like? What would you see...
In six hours, you, your government, and 124 million other people across 14 states will be tested by the greatest disaster to ever hit the U.S. East Coast. A great wave...
The Solar System seems calm, but that tranquility is more fragile than it appears. Now imagine one day looking up and noticing something unfamiliar in the sky. A tiny...
If you traveled 10,000 years into the future, what would planet Earth look like? Would most of its surface be covered in volcanoes? Or would it be frozen in ice? What if...
Mars is usually a safe 225 million kilometers away from Earth, but what if the red planet went off course and headed straight toward us? This nightmare scenario would...
Why are these crocodiles spending so much time on dry land? Is it because their watery homes are too polluted? Or is it because they’re scared of a bigger predator...
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...
If you’re wondering where to take your first post-pandemic trip, here’s a place you don’t want to miss. Lake Baikal. This lake is unique. And its...
