The story begins when a massive comet collides with Earth, causing a group of people, along with a portion of land, to be flung into space and onto the surface of the comet. Among the survivors are Captain Hector Servadac, his loyal orderly Ben Zoof, and a diverse group of characters, including soldiers, civilians, and even a Spanish actress.As they find themselves on the comet, which they name Gallia, the group must adapt to their new celestial surroundings. They discover that Gallia has its own atmosphere and gravity, making survival possible. The novel follows their adventures as they explore this newfound world, encounter strange phenomena, and deal with the challenges of living on a comet.One of the central conflicts in the story arises when the group encounters another human settlement on the comet, leading to tensions and power struggles. Meanwhile, they must grapple with the reality of their situation and the uncertainty of their future."Off on a Comet!" is characteristic of Jules Verne's writing style, known for its meticulous attention to scientific detail and imaginative exploration of uncharted territories. While it may not be as well-known as some of his more famous works, such as "Twenty Thousand Leagues Under the Sea" or "Journey to the Center of the Earth," it is still a notable example of his contribution to science fiction literature.