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, Mark must use his ingenuity and scientific knowledge to survive on the harsh and desolate planet. The Martian is a gripping and scientifically accurate adventure that explores themes of resilience, human determination, and the power of the human spirit.