Nan Liu, research assistant professor in physics in Arts & Sciences, received a $493,885 grant from NASA to study presolar grains in primitive meteorites. Under her new project, “Isotopic Characterization of Presolar Supernova Grains: Constraints on Dust Formation and Nucleosynthesis in Type II Supernovae,” Liu will obtain isotopic and structural compositions of presolar grains from ancient supernovae to constrain the production of elements and dust condensation. Her goal is to improve the understanding of the origins of the solar system.