Found out why contrary to what i read somewhere else you have to research rocketry before blue science packs unlock thanks for the quick replies

In the third tab (intermediate products) all there is are red and green science packs

Nope no mods i didnt even know there where mods for this game yet just bought it last night

For some reason they are not showing up to craft even after researching batteries any had this problem would love to be able to continue researching

(not sure if this should be in help or bugs)