What If You Fell Into a Volcano?

If you ever find yourself falling into a volcano, there are a couple of things you should know. First off, when you reach the bottom, the magma’s not going to...

What If We Built a City on Mars?

The next step in space exploration isn’t generations away. It’s happening right now. And our destination? That mysterious, desolate world next door, Mars...

What If We Extinguished the Sun?

How much water would you need to extinguish the Sun? How would we deliver such an enormous amount of water anyway? Would all that water even make it to the star...