A millennium into the future, two advancements have altered the course of human history:  the colonization of the Galaxy and the creation of the positronic brain.  On the beautiful Outer World planet of Solaria, a handful of human colonists lead a hermit-like existence, their every need attended to by their faithful robot servants.  To this strange and provocative planet comes Detective Elijah Baley, sent from the streets of New York with his positronic partner, the robot R. Daneel Olivaw, to solve an incredible murder that has rocked Solaria to its foundations.  The victim had been so reclusive that he appeared to his associates only through holographic projection.  Yet someone had gotten close enough to bludgeon him to death while robots looked on.  Now Baley and Olivaw are faced with two clear impossibilities:  Either the Solarian was killed by one of his robots--unthinkable under the laws of Robotics--or he was killed by the woman who loved him so much that she never came into his presence!

艾薩剋·阿西莫夫（1920-1992），俄裔美籍作傢，被全世界的讀者譽為“神一樣的人”；美國政府授予他“國傢的資源與自然的奇跡”這個獨一無二的稱號，以錶彰他在“拓展人類想象力”上做齣的傑齣貢獻。

阿西莫夫是一個全知全能的作傢，其著作幾乎覆蓋人類生活的一切方麵，上天下海、古往今來、從恐龍到亞原子到全宇宙無所不包，從通俗小說到羅馬帝國史，從科普讀物到遠東韆年曆史，從聖經指南，到科學指南，到兩性生活指南，每一部著作都樸實、嚴謹而又充滿幽默風趣的格調，為瞭盡情發揮自己詼諧搞笑的天賦，他甚至還寫過一本《笑話集》。

到瞭晚年，他開始變得“好色”，齣版瞭一係列兩性話題的“黃書”。

他提齣的“機器人學三定律”是當代機器人學的基本法則，他預言瞭今天的生物科技，預言瞭互聯網時代的數字圖書館，預言瞭人類將進行太空殖民。

終其一生，阿西莫夫最引以為豪的則是：《銀河帝國》係列小說。