Anchored by two amazing new experiences ­– one an alien planet where mountains float and Banshees fly, the other an epic adventure inviting a breathtaking drop into the world of Super Heroes – Disney parks on both coasts are poised to make summer 2017 a season like none other. It all begins May 27, with the debuts of Pandora ­– The World of Avatar at Walt Disney World Resort and Guardians of the Galaxy ­– Mission: BREAKOUT! at the Disneyland Resort.…