The official website for
the world of Catan

Question about Starship Catan Diplomat Outpost Mission - When we played the game, all 4 target planets happened to be in one of the 4 card stacks and thus had the same function as a Lost Planet – namely, that you can’t perform actions because of them and also lose a Booster point.


Your way of playing was correct: in this mission the target planets are indeed considered as additional Lost Planets.