Andy Weir is an American science fiction writer, best known for his novel "The Martian" which was later adapted into a successful film directed by Ridley Scott. He was born on June 16, 1972, in Davis, California, USA.Weir's interest in science fiction began at a young age, and he started writing short stories in his early twenties. After several rejections, he began self-publishing his work on his website. In 2011, he started writing "The Martian" as a serialized story on his website. The book was later picked up by Crown Publishing Group and became a New York Times bestseller.Weir's other works include the novel "Artemis," which takes place on a moon colony, and the short story collection "The Egg." He is known for his technical accuracy and attention to detail in his science fiction writing, often drawing on his background in computer science.Before becoming a full-time writer, Weir worked as a programmer for various companies, including AOL and Blizzard Entertainment. He currently lives in Mountain View, California, and continues to write science fiction novels.