Dr. Jessica L. Osuna is an atmospheric scientist for the National Atmospheric Release Advisory Center (NARAC) at Lawrence Livermore National Laboratory. Dr. Osuna received her Bachelor of Science degree in Atmospheric Sciences at the University of Illinois Urbana – Champaign. She then completed her Ph.D. in Environmental Sciences, Policy, and Management at the University of California – Berkeley. During her tenure at Berkeley, she was awarded the National Science Foundation (NSF) Graduate Research Fellowship, NSF IGERT (Integrative Graduate Education and Research Traineeship) fellowship, and UC-Berkeley Chancellor’s Opportunity Fellowship. After completing her Ph.D., Jessica received the National Science Foundation Post-Doctoral Research Fellowship in Biology. She joined the University of New Mexico and Los Alamos National Laboratory to conduct research on drought resiliency of the piñon-juniper woodlands at the Sevilleta Long Term Ecological Research site. In 2012, Dr. Osuna joined Lawrence Livermore National Laboratory as a postdoctoral research associate in the Atmospheric, Earth, and Energy Division. She conducted both field experiments and computational simulations of trace gas and energy exchange between the land surface and the atmosphere. This work improved the understanding of ecosystem functioning, especially with respect to carbon budgeting and the generation of renewable energy (hydropower, solar power, wind power). In 2016, Dr. Osuna joined the National Atmospheric Release Advisory Center (NARAC) at Lawrence Livermore National Laboratory as a research and operations scientist. NARAC simulates the atmospheric dispersion of hazardous material, especially radiological and nuclear material. They provide timely, accurate, and actionable plume predictions to aid emergency preparedness and response efforts. In this capacity, Dr. Osuna works with the military; state, local, and federal government officials; and other governmental agencies to respond to national and international emergencies related to an atmospheric release. Among the work that Dr. Osuna does, she is the NARAC mission lead for the Department of Energy’s Radiological Contingency Planning Team which supports NASA launches that involving a radioisotope power system. She is part of the critical staff in the Radiological Control Center at Kennedy Space Center and is currently preparing for the launch of the Mars Rover which is set to occur in the summer of 2020. Outside of her work at NARAC, Jessica participates STEM (Science, Technology, Engineering, and Math) outreach and mentoring activities, especially in minority and under-resourced communities throughout the San Francisco Bay Area. She is involved with two non-profit organizations: serving on the Bay Area Council for Girlstart, and conducting a hands-on workshop at the Expanding Your Horizons conference for girls. She is active in the Society for the Advancement of Chicanos and Native Americans in Science (SACNAS) organization, mentoring students as they navigate their careers in STEM. In addition, she is a frequent guest speaker in classrooms and science for the public events around the Bay Area.