Which author wrote the novel 'The Martian'?

Which author wrote the novel “The Martian”? Andy Weir wrote the novel.

The Martian began as a serialized story on Weir’s website before he released it as a low-priced Kindle book in 2011. Its detailed treatment of orbital mechanics, botany, engineering, and Mars survival helped it attract a large audience. Crown Publishing later issued a revised print edition in 2014.

The story follows astronaut and engineer Mark Watney, who is accidentally left behind on Mars and must solve one practical problem after another. His famous survival strategy is essentially to work through the science, conserve resources, and maintain communication with Earth. The novel’s success led to a 2015 film directed by Ridley Scott and starring Matt Damon, though the book contains considerably more technical detail.