Andy Weir is an American science fiction author best known for The Martian, the breakout novel that turned his long career as a software engineer into a full-time writing life. A lifelong space enthusiast, he is known for blending hard science, problem-solving, humour and human resilience into stories that feel both intelligent and wildly readable. He lives in California.
His major books include The Martian, Artemis and Project Hail Mary. The Martian began as a serial on his website before becoming a bestselling novel and later a major film adaptation. Project Hail Mary has also been adapted for cinema, with the film released in March 2026, further cementing Weir's place as one of the most recognisable voices in modern science fiction.
Weir's appeal lies in his rare ability to make orbital mechanics, physics and survival maths feel like gripping drama rather than homework in a spacesuit. He has also said he is currently working on a new standalone science fiction novel, which suggests there is still more trouble, wonder and ingenious disaster to come.
