Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not enough Science

The polyanish attitude of Zubrin to dismissing real hurdles to a Mars mission makes this book more of a cheerleading manual than a science treatise. It's a good read if one leaves science at the door and flips the pages for an adventure story. He creates a cult following of those who enjoy Star Trek, Star Wars, etc. and don't have the ability to distinguish science and science fiction.The book deserves one star for Science but I'll add another star for enthusiasm. 'The Chariots of the Gods' reader will enjoy the book.