The Institute for Astronomy (IfA) invites applications for a Postdoctoral Fellowship with interests in the origin of Earth's water to work with the University of Hawai'i's NASA Astrobiology Institute lead team (see http://www.ifa.hawaii.edu/UHNAI/). The UH lead team maintains an innovative and multi-disciplinary research environment linking astronomical, biological, microbiological, chemical, and geological sciences to investigate the origin, history, distribution and role of water as it relates to life in the universe. The program centers around interactions with an interdisciplinary group of postdoctoral fellows. We have a particular need for an individual interested in the origin of Earth's water, and, by analogy, terrestrial planetary volatiles. The work involves geological field work to sample primitive, deep-mantle-plume materials, preparation of samples of melt inclusions in olivines from Hawaiian and Icelandic basalts for isotopic measurements using the petrographic microscope, scanning electron microscope, and electron microprobe, and measurements of D/H ratios and hydrogen abundances in the melt inclusions using the UH Cameca ims 1280 ion microprobe. The Fellowship is for one year and may be renewable up to a total of 3 years assuming satisfactory progress and continued availability of funds. The fellow will receive a stipend of approximately $5,000 per month, a small relocation allowance and basic research costs.