Star nymph event is on...it's the same deal as last time, just run regular missions and collect event points (campfires and hot dogs on sticks). I can't be certain, but it looks like they took event currency out of the loot pool for the on-map spray of extra items after you complete the levels, which is too bad. I farmed the crap out of those for the last event...with them and the pod rewards I only had to use 18 or so event points out of the mission rewards to unlock the final reward. I'm still burning through the mission rewards making space nymph shells.