I can't seem to figure out how to get to that upper level. I've been trying to figure it out for hours with no luck at all. Can someone give me a very vague, tiny HINT on how to get up there. I wanted to finish the whole game without cheating or anything, but this is driving me nuts. So a very vague hint would be appreciated (don't just tell me, please).
For reference, I've got 100 stars and I'm just going back through all the galaxies finding the hidden stars (and a few comet ones too).