I think you’ve got something here, the beginnings of a good world worked out. I did have a hard time sticking with it early on though. You may want to give the reader more of a reason to care. If the planet is a dumping ground and there is little or no hope of escape and the only activity is pursuing that hopeless cause, your reader has nothing to grab onto, no reason to be interested in the outcome. No reason initially to spend the time to get hooked. Maybe one of you characters is funny or two of your characters are in love or hate each other. You get the idea. Beyond that, it’s a brave start. Keep going!