Nicole Marie Lloyd-Ronning is an American computational astrophysicist specializing in gamma-ray bursts and the deaths of massive stars as a researcher at the Los Alamos National Laboratory and lecturer at University of New Mexico–Los Alamos. She is also known for her work in science popularization, as the author of the book Great Mysteries in Astrophysics, as a scientist ambassador for the Bradbury Science Museum, and in youth outreach programs, especially for young people from indigenous groups in the American southwest.[1]