What If the Sun Swallowed Earth?

The Sun’s core is shrinking. But as its core shrinks, the Sun itself grows larger. And it will continue to grow, until one day, it engulfs the Earth. How long can you...

What If You Never Stopped Growing?

We all know that growing up can come with its aches and pains. But at a certain point, our genes flip the switch, and our bodies stop growing. I know, I know, it’s...

What If Humans Could Fly?

How would your body change? How would you avoid mid-air collisions? Would cars and planes still exist? I want to make it clear that when I talk about flying, I mean real...

What If You Skydived From the ISS?

410 kilometers (254 miles) above the Earth. That’s where the International Space Station floats. What if you happened to be all the way up here but suddenly fell...

What If Your Skin Were Bullet-Proof?

On average, 100,000 Americans are wounded by guns each year. Scientists have developed something that could prevent gunshot injuries from happening. Bulletproof skin...

What If Uranus Collided With Earth?

It’s been 30 days since Uranus first appeared in the sky. At first, it looked like our Moon had found itself a stellar partner. But then, we understood something...

What If You Could Breathe Fire?

Don’t try this at home, kids. You may have seen performers breathe out giant plumes of flames. It’s breathtaking, and extremely dangerous. But the performers...