吀眀椀渀挀栀

寻找地球以外生命是PBSNova系列的一部分，由杰伊·桑德斯主持的纪录片.用令人眼花缭乱的动画结合最新的望远镜影像把你带到浩瀚的宇宙，还有顶级天体生物学家的解读。是一部精彩的纪录片。

Before man ruled the world, Earth was a land of giants. Count down the biggest beasts of their kind

Scientistsareonthevergeofansweringoneofthegreatestquestionsinhistory:Arewealone?FindingLifeBeyondEarthimmersesaudiencesinthesightsandsoundsofalienworlds,whiletopastrobiologistsexplainhowtheseplacesarechanginghowwethinkaboutthepotentialforlifeinoursolarsys