Here's what I'm thinking about it:
New Boss!:Sol,the Magnificent
The star who is in the center of the solar system,avoid his immense heat and his most devastating Solar Flare powers!
+Champions for the Planet bosses(+ Sol),Astral Challenge rooms just got harder!
(Inspired by the Sin boss champions from Reworked and Improved Foes mod by PixelPlz!)
+Luna can find more items!(+ modded items!)

New Tainted Planetarium Items:Sol? & Pluto?
+Tainted versions of the Planetarium Items from Fiend Folio,Andromeda,and Job!
+New Rock Trinkets for Golem from Fiend Folio!