Chinese-American physicist known for 1990s research on superconductors, gravitomagnetism, and possible anti-gravity effects at the University of Alabama in Huntsville. She later founded AC Gravity LLC and received Department of Defense funding for follow-on work.
Ning Li was a Chinese-American physicist born in Shandong who studied at Peking University and later worked in the United States at the University of Alabama in Huntsville's Center for Space Plasma and Aeronomic Research. Between 1991 and 1993, she co-authored a series of papers with Douglas Torr on superconductors, gravitomagnetic effects, and the possibility of producing gravity-related phenomena through aligned ions in high-temperature superconducting materials. Those papers made her one of the most frequently cited names in discussions of speculative gravity-related propulsion in the 1990s. In 1999 she left the university, founded AC Gravity LLC, and later received Department of Defense funding for follow-on work, though comparatively little from that later phase entered the public literature. Her reputation in UAP-adjacent research comes from the overlap between frontier propulsion ideas, classified interest, and long-running public interest in whether advanced aerospace programs pursued gravity-control concepts.