If you’re watching this right now, you’ve probably used antibiotics at some point in your life. But did you really need to? The Centers for Disease...
Once a revolutionary invention, it's now filling up our oceans and killing thousands of whales, birds, turtles... Just how much plastic do we have around us?
Get your bone flute and gather around the fire. Today on What If, we’re taking you back to the time of woolly mammoths and saber-toothed cats. That’s right...
Forget the idea of a flat Earth and imagine instead an Earth shaped like a giant slice of pizza. At first glance, it might seem amusing and even delicious to picture...
Are you ready for the sun to die?
An asteroid races towards Earth. In 6 months, the world as we know it will be obliterated. What do you do? Is there time to evacuate? What would it take? And where would...
You’ve traveled thousands of light-years through interstellar star systems. And now you’re stranded on a planet you know nothing about. As long as...
Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also could have brought alien life to our planet...
What if the Moon suddenly began getting closer to Earth? To the point where it was on a collision course with our planet? Would the Earth survive the crash?
For 20 years, Russian scientists and engineers drilled deeper and deeper, hoping to uncover whatever mysteries the hole may hold, earning it the ominous nickname of...
Did you know that you ladies spend about 2,300 days of your life menstruating? That amounts to about 10,400 tampons or pads, over 5,000 pills for your cramps, and about...
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...
Imagine being transported 500 million years into Earth’s past, landing in a world that feels both alien and dangerously unfamiliar. You have just arrived in the Cambrian...
If you could, would you live on the Moon? Not as one of the courageous early settlers, but as a citizen of a fully-functioning Moon city. What would they be built out of...
You would 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 clunky spacesuit, and you...
Imagine taking a trip to the outer reaches of our Solar System, to a place few have ever seen up close. Uranus, the icy giant, is a world of extremes, violent, cold, and...
Climbing the world’s tallest mountains is a daring adventure. But you’re about to make an epic extraterrestrial trek on the biggest mountain in the entire Solar...
Would you sleep in this earthquake-proof bed? It senses when an earthquake is happening and drops you into a safe metal chamber. Yes, we know how ridiculous this looks...
The Earth is a dying rock and time is running out. You only have 10 years to plan your escape. How could we evacuate as many people as possible? What resources would we...
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...
