Editor’s note: this article contains spoilers for Aurora.
Aurora, the most recent novel by the science-fiction author Kim Stanley Robinson, focuses on the long-distance voyage of Earth’s first interstellar generation starship. A generation starship is a spaceship designed to sustain a small human population stuck on the ship for several generations. This generation ship is travelling 11.9 light years to the Tau Ceti system, a voyage that takes them roughly 200 years to complete. Thus, the inhabitants of the ship that we meet are not those individuals who signed up willingly for the expedition, but rather the descendants of their descendants.