In the 1960s and 1970s New Wave science fiction was known for its embrace of a high degree of experimentation, both in form and in content, and a highbrow and self-consciously "literary" or artistic sensibility.  In 1961 Solaris by Stanisław Lem was published in Poland.  The novel dealt with the theme of human limitations as its characters attempted to study a seemingly intelligent ocean on a newly discovered planet.  1965's Dune by Frank Herbert featured a much more complex and detailed imagined future society than had been common in science fiction before.  In 1968 Philip K. Dick’s best-known novel Do Androids Dream of Electric Sheep? was published. It is the literary source of the film Blade Runner.  1969's The Left Hand of Darkness by Ursula K. Le Guin was set on a planet in which the inhabitants have no fixed gender. It is one of the most influential examples of social science fiction, feminist science fiction, and anthropological science fiction. 
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