Cap Mark Mannly

Yeah I've scrolled though the list, are there pre-requsites that im missing? Wasteddammo do you mean they'll become available When i reach a certain amount of planets?

Title says it all really? Do I have to have a certain tech? if so what path is it on. I'm only on my first game and have colonized two other planets so far and am already feeling like my one spaceport on my home planet isn't enough. thanks in advance for any replies