The happiness resource produced by collapsing gas giants also looks really similar to the research resource produced by labs. Didn't realize that they are different things at first.
I'm gonna try to improve the readability of the resources for the next update. I'll also put a resource chart in the quickstart so that it's clearer what's what and what it does (it might be hard to put one in-game due to PICO-8 space restrictions). The resource collapsed stars make is "energy" - it can a) replace anything a planet needs and b) increase any planet's production