For this new book Andy Weir looks beyond the solar system but still manages to write a great book where the science hangs together. I love his attention to detail and the fact there are no completey unbelievable scientific advances in order to make the book work. I loved it. I meant to read it a chapter a day since an Andy Weir book doesn't come around that often. In the end I read it over a weekend because I could not put it down.