Katharina Grosse: Atoms Inside BalloonsKatharina Grosse's painting practice is a phoenix from the ashes of late Modernism, appending themselves to the Greenbergian cul de sac in an uncanny manner. Since 1998 Grosse has been using a compressed air spray gun to apply garish swaths and splashes of undulating color directly to gallery walls, floors and ceilings with sublimely spectacular results. Abandoning painting's traditional means of support, however, is simply a step toward getting at