Spectrum Petals, part of Crossing Over: Art and Science at Caltech, 1920–2020, is a series of seven mirrored, spectral-colored sculptures featured in the Getty’s 2024 PST ART: Art & Science Collide initiative. Fabricated with geometric precision and colored according to the visible light spectrum, the sculptures evoke Southern California’s Light and Space movement and challenge the conventional divide between art and science.

Mabari’s collaboration with Caltech began in 2002 through optical illusion research with Dr. Shinsuke Shimojo, resulting in a U.S. patent and international exhibitions. In 2018, she became the first artist to fly aboard a mission of NASA’s SOFIA observatory.