What If We Discovered Earth 2.0?

Could there be an even better planet for us than Earth? Scientists are searching for a superhabitable world that wouldn’t just rival Earth, but be a place where life...

8 Minutes Without Oxygen?

You wouldn’t notice it at first. But every second, the air around you is thinning, just a little. Within 30 seconds, you’d be gasping. Engines would fail, hospitals...

What If Our Mountains Collapsed?

Mountains. They’re born, they grow, they age and erode. And after a very, very long life, they turn to dust. What if all mountains collapsed at once? What are the...

What If We Nuked Mars?

Life on Mars might be like this. You’d 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...

What If the Sun Dimmed Down?

The sky appears darker. The temperature is starting to drop. Our rivers are freezing, crops are covered in snow! People could go hungry. Is it just me, or is the Sun...