The Martian is a science fiction novel written by Andy Weir. The story follows astronaut Mark Watney, who is left stranded on Mars after his crew mistakenly believes he is dead. With limited supplies and no way to communicate with Earth, Watney must use his ingenuity and scientific knowledge to survive. The Martian is a thrilling and scientifically accurate portrayal of one man's struggle for survival in the harsh conditions of the Red Planet.