"Westfahl offers an extended definition of hard science fiction--i.e., scientifically accurate SF that does not go beyond current scientific knowledge. He distinguishes between two forms--near-future extrapolation of current scientific developments and the far-future projection of large developments and strange (but scientifically plausible) worlds. Highly recommended for academic libraries with SF collections and for large public libraries." -- From the Publisher
The first comprehensive critical study of hard science fiction, this book reveals how the term hard science fiction originated, and closely examines three representative works.