The Martian is a science fiction novel written by Andy Weir. It tells the story of Mark Watney, an astronaut who is left stranded on Mars after his crew mistakenly believes he has died during a mission. With limited supplies and no way to communicate with Earth, Mark must use his ingenuity and resourcefulness to survive on the harsh and desolate planet. The Martian is a gripping and realistic portrayal of one man's struggle for survival in the face of overwhelming odds. It combines elements of science, adventure, and human resilience to create a captivating story.