Could humans suddenly growing to the size of dinosaurs be as catastrophic as the asteroid that wiped out the prehistoric giants? Would it even be a world ending event...
THE SUN IS A GIANT BALL OF FIRE No. Our Sun isn’t a raging bonfire in the center of the Solar System. It’s actually a nuclear reactor. Inside stars, hydrogen...
[dx_custom_adunit mobile_id=”RTK_v1lP”] There are sunsets on other planets even more spectacular than the ones on Earth. What if we could see not just one...
Could you imagine jumping from the kitchen window and diving into water? How fun would that be? For some people, sure. It seems unlikely, but it’s not as crazy as...
In 1044, the Chinese invented gunpowder. And we’ve been getting into trouble ever since. Fireworks are cool, nuclear warfare is not. And nuking the moon...
There are over one million volcanoes on our ocean floor. And all of them suddenly started spewing out red-hot molten rock. The ocean is filling with lava. And nothing...
[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...
Instead of falling apart after a single crash, now we all have cars that are completely indestructible. Would there be fewer fatalities caused by car accidents? What...
Deep under Europa’s thick icy surface lies an ocean larger than all of Earth’s oceans combined. But it’s pretty useless way out there. Let’s ship that water back to...
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...
Imagine never being able to dream of landing on Mars or traveling to Saturn. Not because it’s impossible to get there, but because they didn’t exist. Because...
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...
Sixty six million years ago, a colossal asteroid crashed into what is now the Yucatán Peninsula in Mexico. It triggered the extinction of the dinosaurs and wiped out...
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...
At first, it doesn’t look dangerous. Maybe it’s a self help seminar. A spiritual community. A group that promises happiness, purpose, and a place to belong...
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...
Ah. The Sun. So bright. So hot. Time to jump into your super heat-resistant spaceship and get so close you could touch it. If you dare. How would you get to the Sun’s...
Swipe Down for Full Video Story Most of us learned that the Solar System has eight planets. For many years, Pluto made it nine before being reclassified as a dwarf...
For more than half a century, rockets have been humanity’s ticket to space. They carried astronauts to the Moon, launched probes to the outer planets, and continue...
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...
