toxic jetty
I'm sure this has been said before, and perhaps it's due to the mod being in the early stages of development, but building a Tier 3 rocket to go to ||mercury, blissfully unaware that there's nothing to do there, only figuring it out 30 minutes later|| Venus to spend 10 minutes mining, just to head back to earth to make your Tier 4 stuff just seems like kind of a waste of my time with Tier 3.
It'd have been fine if this was explained somewhere like in the mod, or on a wiki. (that things are still being developed, and things are missing/empty atm) ((Twilight Forest did this and it saved me a ton of time that would have been wasted looking around for a final boss))
Maybe it is and I'm dumb, but you should also account for stupid people like me 
I might be stating the obvious but there should be more to do on all the planets, and potentially make the recipes a bit more resource heavy. (not just ores) is what I'm getting at.
round olive
light cloak
prime holly