After you get the spider ball, go back to the Chozo astronomy lab in Skytown, Elysia. This is the place where you get into a light up bomb thing as a morph ball, and magnifying lenses move to a position and a probe is sent into the sky that gives you maps. Enter all the bomb things, one by one. After all of them have been used, you should have maps for all of the planets and positions of upgrades. They will come up as a sphere, and if they are acquired, they will become an X.