"Ultima Thule" is a science fiction novel by the famous writer Mack Reynolds. The book tells about an expedition to the most distant planet in the galaxy, which is completely covered in ice. In this unique world, the heroes find something that can change the future of humanity forever. The author skillfully combines scientific facts with fantastic elements, creating an exciting atmosphere of mystery and discovery. "Ultima Thule" is a book that will leave an unforgettable impression on every connoisseur of science fiction.