Red Mars is a science fiction novel written by Kim Stanley Robinson. It is the first book in a trilogy that explores the colonization and terraforming of Mars. The story follows a group of scientists and engineers who are tasked with transforming the barren planet into a habitable environment. Red Mars delves into the scientific, political, and social challenges of colonizing a new world, as well as the personal conflicts and relationships of the characters. The book is known for its detailed world-building and realistic portrayal of the scientific process.