Assuming it's not classified, what kind of ship are they designing?
Just from a cursory glance at their site i think the first steps are not about building an actual ship but to research the basics of long time/long distance projects, i.e. how can people live within this ship for several generations and sustain the mission and how can this be funded.
Actual engineering is "only" the last step after they've figured out how to successfully complete the mission.
Pretty cool stuff.