The very definition of Hard Science Fiction. Also, so much fun and existential nightmares. Goodreads: .
Poul Andersons book Tau Zero stands out in the genre in large part because it does precisely the thing that one so rarely sees in science fiction: it takes a keen . Tau Zero by Poul Anderson. 30-second Sci-Fi book review #209 Tau Zero by Poul Anderson WHY DOES THIS BOOK HAVE SUCH A GREAT REPUTATION??? BECOME A PATRON!