[Hunpecked]

ZeroAdunn: "I hope they don't run into other human occupied worlds. It just doesn't seem right."

Not necessarily. Colonial tradition is that they originated somewhere else (and of course we know their ancestors migrated from the Sol system). Presumably the migration would have left colonies on habitable worlds along the migration route. If the Colonial fleet is traveling in the general direction of Sol (allowing for stellar movement), it's not unreasonable for them to find some of these old colonies, which may in fact have thrived and surpassed the Colonials in technology and population.