What If Earth Was Twice as Big?

Doesn't it suck having a noisy neighbor? Or constantly running into your ex? We all need personal space, but often find we can't get enough. Don't you wish the world was...

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...