what is dune based on

Dune is a science fiction novel by Frank Herbert, originally published as two separate serials in Analog magazine in 1965). The novel is set in the distant future and tells the story of a feudal interstellar society where noble houses compete for control of the desert planet Arrakis, which is the only known source of the spice melange, a substance that enhances mental abilities and extends life. The novel explores themes of politics, religion, ecology, and the consequences of power, faith, and resource exploitation. Herbert deliberately suppressed technology in his Dune universe so he could address the politics of humanity, rather than the future of humanitys technology). The novel was inspired by a real desert experiment by the U.S. Department of Agriculture in the 1950s, which involved the use of poverty grasses to stabilize sand dunes and prevent them from swallowing highways, entire cities, rivers, and lakes. The Dune series consists of six books: Dune, Dune Messiah, Children of Dune, God Emperor of Dune, Heretics of Dune, and Chapterhouse: Dune. The 2021 Dune movie is based on the first half of the original 1965 Dune book, and it is the first part of a two-part film adaptation of the novel.