Applications are invited for a Post-doctoral Research fellowship in Cosmochemistry. The successful applicant will join an active research program that investigates a wide variety of topics, including: 1) the chronology of the early solar system, 2) the nature and origin of the presolar dust that provided the raw material for the solar system, 3) the isotopic and chemical compositions and origins of primitive chondritic components, 4) samples returned by the Stardust Mission to comet Wild 2, and 5) solar wind samples returned by the GENESIS Mission. The main analytical tools for this research are the petrographic microscope, scanning electron microscope, electron microprobe, scanning Raman microscope, and ion microprobe. Minimum qualifications include a Ph.D. in a discipline relevant to cosmochemistry and experience in one or more of the following areas: cosmochemistry, meteoritics, isotope geo- or cosmochemistry, secondary ion mass spectrometry. Previous experience with one or more of the following is required (training will be provided for the others): petrographic microscope, scanning electron microscope, electron microprobe, Raman microscope, or ion microprobe. Experience with isotopic measurements or meteorite petrography is desired. The successful candidate will participate in one or more of the above research projects and will receive training and will be expected to become an independent user of the Cameca ims 1280 ion microprobe at the University of Hawai'i. The Fellowship will be for an initial period of 1 year with renewal for up to 2 additional years based on performance and on the availability of support.