At the heart of many great science fiction books is the search for, discovery of, or fighting to preserve Love. Space Opera tends to be the genre of choice for epic space-themed love stories, with another category for Sci-Fi over in the Romance section now becoming filled with new writers and their stories. Love stories can just as easily be found in hard-science, military-based, time-travel and the whole gambit of science fiction sub-categories. The point is that science fiction, in essence, is a human story – and love is a vital part of our nature.
What happens when love is approached from a non-human perspective? How do aliens perceive this complex emotion? What about sentient artificial intelligence?