Andy Weir

American

Andy Weir is an American novelist and former software engineer whose debut novel, The Martian, began as a free serialized story on his personal website before becoming a self-published ebook, a print bestseller, and a film starring Matt Damon. Weir has said he spent years researching orbital mechanics, botany, and chemistry to keep the science in his survival stories as accurate as possible, a rigor that has become his signature. His follow-up novels, Artemis and Project Hail Mary, continued that hard-science-fiction approach; Project Hail Mary went on to become the #1 New York Times bestseller and was adapted into a 2026 film starring Ryan Gosling. Weir has described his goal as writing science the way sports writers cover games, making orbital dynamics and interplanetary survival feel like edge-of-seat drama.

Notable works: The Martian; Artemis; Project Hail Mary