MoMA Ps1 Long Island City, NY Sunday, March 23, 201 12:00 PM to 6:00 PM The Museum of Modern Art's hip and contemporary younger sister Ps1 will host a Spring Open House on March 23 to celebrate the opening of Christoph Schlingensief, Maria Lassnig, Korakrit Arunanondchai, Gavin Kenyon: Reliquary Void, GCC: Achievments in Retrospective, Taster's Choice,…