Günther Uecker, ZERO Artist Who Made Abstractions from Nails, Dies at 95

Günther Uecker, an iconic artist of the postwar era who redefined abstraction not with paint but with nails hammed into his canvases, died on Tuesday at 95. His passing was announced by his New York gallery, Lévy Gorvy Dayan, which did not specify a cause of death. The German press agency dpa reported that he had been hospitalized in Düsseldorf.Uecker was one of the main artists associated with ZERO, an avant-garde group that was founded in 1957 by Otto Piene and Heinz Mack. Uec