Resilience learns about Mars’s dust storms (nicknamed dust devils). Resilience worries about going offline because of a storm, and Journey argues that there is no point in thinking about outcomes for which they do not have data. Instead, they should use their powerful brains to make good decisions, and if they do this together, that is “most certainly [their] best chance at success” (68). Resilience wonders if they will get to come back to Earth, and after a long silence, Journey says she doesn’t know.

In her next letter, Sophie relays that her mom took an entire day off from work to spend with her family, which made Sophie very happy. She’s proud of her mom and of Resilience, and she wants to do world-changing things like Resilience one day.

One day, Xander uses a device to make something he calls music. Resilience likes music very much because it “seeps inside [his] system and makes it vibrate in a way that is different from ever before” (73).