Science fiction is usually not my thing but I fancied something different and something I could sink my teeth into. This book is excellent and puts life here on Earth into a quite harrowing perspective! Absolutely loved it however I did get lost on some of the science from time to time but I really liked how the author obviously worked tirelessly and in partnership with some of the best scientists here on Earth to make sure the story was as accurate as possible! Absolutely loved it, only reason for the 4-stars was the length of the book but other than that, its a masterpiece and really good escapism!