Andrew Taylor Weir (born June 16, 1972) is an American novelist whose debut novel, The Martian, was later adapted into a film of the same name directed by Ridley Scott in 2015. He also worked as a computer programmer for much of his life. He received the John W. Campbell Award for Best New Writer in 2016.Weir was born and raised in California, the only child of an accelerator physicist father and an electrical-engineer mother who divorced when he was eight. Weir grew up reading classic science fiction such as the works of Arthur C. Clarke and Isaac Asimov. At the age of 15, he began working as a computer programmer for Sandia National Laboratories. He studied computer science at UC San Diego, although he did not graduate. He worked as a programmer for several software companies, including AOL, Palm, MobileIron and Blizzard, where he worked on the video game Warcraft II: Tides of Darkness. Weir is best known for his first published novel, The Martian. He wrote the book to be as scientifically accurate as possible, and his writing included extensive research into orbital mechanics, conditions on the planet Mars, the history of manned spaceflight, and botany. Originally published as a free serial on his website, some readers requested he make it available on Amazon Kindle. First sold for 99 cents, the novel made it to the Kindle bestsellers list. Weir was then approached by a literary agent and sold the rights of the book to Crown Publishing Group. The print version (slightly edited from the original) of the novel debuted at #12 on The New York Times bestseller list. The Wall Street Journal called the novel, "the best pure sci-fi novel in years". It was made into a film starring Matt Damon and Jessica Chastain, which was released October 2, 2015.

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