What is life? It's a deceptively simple question. Philosophers and scientists have pondered it for millennia, and they have yet to settle on a satisfactory answer. And as we venture into a new era of scientific exploration, the inevitable question arises: will we recognize life if we find it elsewhere in the cosmos?
How would you define life? Would that definition hold up on a distant planet around a distant star? Learn more by watching the video above. And don't forget to reach out on Twitter, Facebook, or by leaving a comment below. Come on, talk nerdy to me!