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Joseph Gelfand is a leading astrophysicist whose work centers on large-scale spectroscopic surveys, supernova remnants, and the interstellar medium. He is best known for his pivotal role in the Sloan Digital Sky Survey V (SDSS-V), the first all-sky, multi-epoch, optical-to-infrared spectroscopic survey. Gelfand’s contributions to this pioneering project—detailed in his highly cited paper “Sloan Digital Sky Survey. V. Pioneering Panoptic Spectroscopy” (2025, 25 citations)—have revolutionized our ability to map the dynamic universe, enabling simultaneous observations across both hemispheres using multi-object spectroscopy. His research has profoundly advanced the study of supernova remnants and their interaction with surrounding gas, shedding light on cosmic particle acceleration and the life cycle of stars. With a citation count reflecting the growing influence of his work, Gelfand’s leadership in SDSS-V marks a transformative achievement in panoptic astronomy, providing an unprecedented dataset that will fuel discoveries for decades. For students and researchers, his career exemplifies how ambitious survey science can unlock new frontiers in understanding the cosmos.