"The nomads work just as hard as the colonists and stationaries, but enjoy the freedom of waking up to new valleys, oases, moons, or systems, depending on how the group travel."
Unlike other uses of the word group in the same page, here it is the entire group which travels in a ship or swarm and not its individual members, so the proper conjugation should be: "the group travels".
"The day is not structured around the watches like that of other peoples, although the care for the life support, the hydroponics, and the reactors is very strict."
I believe it should be again "people" (in the sense of persons) and that the comma after "hydroponics" should be removed (the conjunction "and" being sufficient).
"News and information are acquired at stops along the way, and “what you don’t know, you don’t know” as the smiling efrite would say."
Here as well, I believe the comma should be placed before "as" instead of "and".