国家/地区：美国
时长：120分钟
语言/字幕：英语
Are we alone in the universe? For over half a century, legendary NASA engineer and best-selling science fiction author, Gentry Lee, has explored every aspect of this question in the realms of space science, robotic explo…
Are we alone in the universe? For over half a century, legendary NASA engineer and best-selling science fi…
