"War of the Worlds" is a science fiction novel written by H.G. Wells and first published in 1898. The story follows the invasion of Earth by Martians, who arrive in large cylinders and unleash devastating heat rays and poisonous gas on humanity. The narrative is presented through the eyes of an unnamed protagonist, who witnesses the chaos and destruction caused by the alien invaders. The novel explores themes of imperialism, survival, and the fragility of human civilization. It has inspired numerous adaptations, including radio dramas, films, and television series, making it a significant work in the science fiction genre and popular culture.