In my story a civilization has reached the point where they want to colonize another planet. They encounter a problem. Their spaceship can only carry a crew of eight (8) people.
Specifics of the journey:
-The voyage takes approximately seven (7) years and covers a distance of 2.3 light years.
-The technology available regarding life support and computing systems are comparable to current day modern tech.
-People cannot be kept in stasis for any amount of time.
-The civilization has access to "magetech" which is an alternate evolution of technology in conjunction with magic. But this technology is very expensive and scarce due to its resource requirements.
-People who wield magic, can only generate energy. Water/food or conjuration of any other nature does not exist.
-Teleportation isn't a thing. (Why else would they take a spaceship if they could just teleport right over there?)
- There are no magical means by which the crew can augment their existence on their journey.
What are realistic reasons for a spaceship to set out to settle on a new planet, that can only take eight (8) people on its journey?