Alexander Calder reimagined sculpture as an experiment in space and motion, upending centuries-old notions that sculpture should be static, grounded, and dense by making artworks that often move freely and interact with their surroundings. “One of Calder’s objects is like the sea,” wrote the philosopher Jean-Paul Sartre, “always beginning over again, always new.” Bringing together early wire and wood figures, works on paper, jewelry, mobiles in motion, and monumental abstract sculptures, the exhibition takes a deep dive into the full breadth of Calder’s career and inventiveness.