Review: Aurora

 Aurora is Kim Stanley Robinson's book about a generation starship arriving at Tau Ceti after several generations. The colonists onboard the ship have at this point been several generations apart from the folks who volunteered to go on this mission, and the ship itself is falling apart. We learn that the planet they're supposed to colonize ("Aurora") is actually a moon of another world orbiting Tau Ceti, and upon landing on the planet, they discover that the planet is not actually lifeless as they thought but has a mysterious micro-organism that starts killing the colonists.

A conventional science fiction story would have the colonists trying to find a cure to this micro-organism (which isn't a virus or a bacterium --- we never know what it is), but Robinson didn't not write a conventional science fiction novel. Instead, there's next to no biologists with technical expertise to come up with any kind of cure, and the moon was kinda sucky anyway as a place to live --- very strong winds, and no actual way for the colonists to self-sustain without serious terraforming work.

So the colonists take a vote on what to do next, igniting a civil war when two factions cannot agree on what to do. In the end, the somewhat sentient starship takes a role, and the groups compromise on setting up the "stayers" for success on a different moon within the system, and the "backers" get to take a reduced version of the starship back to Earth. The "stayers" obviously do not have a good outcome, and the story then follows the "backers" on their exciting journey back to Earth on a rapidly deteriorating craft ending up with an exciting rescue and a denouement of the idea of colonizing planets in other systems.

I enjoyed how well thought out the generation starship approach was, as well as the ideas about what tends to go wrong with such systems and how 2000+ people (about the population of the Starship Enterprise) wouldn't be sufficient to last over 200 years on a journey. I'm not sure I liked the section about the sentient starship which wasn't actually sentient at the start of the journey, and I disliked how few technical people there were for a project of this magnitude. You could argue that expertise was lost over generations, but it seemed that cross generation education wouldn't be something you would want to leave to chance.

The book also assumes that people will continue to want to have more children than they're allocated, but the last 20 years might teach you that the kind of highly educated people who would want to go on missions like this would probably have the opposite problem!

All in all, I enjoyed the critique of "man's mission is to expand to the stars", and the realistic view that when you sign up for one of these generational missions, you're signing up your children and they might not want to do what you signed them up to do. The characters are as wooden as any you'll find in science fiction, but not so badly written that I stopped reading.