Science fiction novels usually used fictional technology and the future as the theme, often including exploring the unknown, exploring the relationship between science and humanity, describing future social changes, and so on. The name of a science fiction novel usually contains related topics and characteristics, such as: - The Milky Way Empire: A description of the rise and fall of a powerful empire in the context of the universe. - Star Trek: A fictional spaceship's adventures in space with the theme of space exploration and interstellar travel. - Time Machine: Description of a device that can travel through time and space. - The Mars Era: Using Mars as the background, it described the era of humans living on Mars. - Superpowers: Description of the supernatural phenomena that the protagonist possesses, such as energy, strength, speed, etc. These are just some common sci-fi names, but there are actually many other names and different storylines.