Lloyd-Ronning was born in
El Paso, Texas and grew up as an
army brat in the US and When she was a high school student in she discovered her interest in science and She majored in physics and astronomy at
Cornell University, graduating in 1996, and completed a doctorate at Her 2001 doctoral dissertation,
Cosmological and Intrinsic Properties of Gamma-Ray Bursts, was supervised by . As part of her thesis, she provided a quantitative prediction of the relationship between gamma-ray burst isotropic energy and spectral peak energy, which was confirmed two years later through observations, termed the "Amati relation" by the lead author of the observational paper. She also showed that the prompt gamma-ray burst emission was well-described by detailed, exact models of synchrotron radiation. During postdoctoral research at the
Canadian Institute for Theoretical Astrophysics, she began working from home and part time after the birth of her first She became a postdoctoral researcher at the Los Alamos National Laboratory in 2004, but the pressure of balancing her work with raising a family led her to drop out of academia and research for although she maintained her currency with ongoing research, her connections with a small number of researchers, and her memberships in the academic societies for her In 2015, she won an M. Hildred Blewett Fellowship, an award given by the
American Physical Society to support women returning to interrupted careers in science. With the support of the she became a lecturer at the and a scientist in the Computational Physics and Methods group at the Los Alamos National Laboratory, initially as a subcontracter and in 2021 as a permanent staff ==Outreach==