Lillian Schwartz’s “Proxima Centauri” is an interactive sculpture with many moving parts. Conservator Cuong Nguyen provides a behind-the-scenes look at The Henry Ford’s efforts to preserve the sculpture and the mechanisms that bring it to life. “Proxima Centauri” is now on display as part of Lillian Schwartz: Whirlwind of Creativity, a career-retrospective exhibition highlighting Lillian’s groundbreaking multimedia artwork. The exhibition will be open through Jan. 1, 2024, in Henry Ford Museum o