Where next?

I must say, it's quite exciting - this would be my second blog post, instantly making this blog larger than about three quarters of the other blogs on the web.

So. I've been playing Lacuna Expanse for around a month now. I have a total of six planets, plus the resources - thanks to the recent Thanksgiving Happiness Boost - to start a seventh. I'm wondering, though, where I should be going....

Thanks to the ever increasing time to upgrade things, I've got a build queue of over a day on each and every colony I've got - my first world currently has enough upgrades in the queue to keep it building for almost a week, though that's thanks to upgrades to both the Archeology Ministry and the University, both for three days.

Which means that I'm building up a huge resource backlog. My homeworld is currently generating about 50k of each resource per hour, and I literally can't use it fast enough. I'm supporting the newer colonies with ships full of resources regularly, and I'm still accumulating resources faster than I can spend it.

So. What should I be doing? Should I start building Munitions Labs and extra Space Ports to build Snarks for the war that will doubtless be coming? Trading large quantities of resources? Your suggestions, please, in the comments!