What If You Fell Into Lake Kivu?

  If you were going for a refreshing swim, the last thing you’d expect is to suffocate from toxic gases. But when it comes to Lake Kivu, this is one dangerous body...

What If We Moved Earth?

Some 5 billion years from now, the Sun will expand and become a red giant. And the Earth might be just in the way… If humans were still around then, would we leave...

What If the Universe Is a Loop?

If you got into a spaceship, and traveled long enough and fast enough, could you eventually loop back to where you started? Assuming you don’t accidentally collide...