Larry Niven's Known Space is a science fiction universe created by author Larry Niven. It features a vast array of planets, species, and technologies, exploring themes of evolution, sociology, and the future of humanity. The timeline spans millions of years, showcasing the rise and fall of civilizations, including the advanced Kzin and the intelligent Pierson's Puppeteers. The series includes several novels and short stories, with notable works like Ringworld and The Mote in God's Eye. Known Space is characterized by its hard science fiction elements, where scientific principles are integral to the plot and world-building, making it a significant contribution to the genre.