Dr. Hope Ishii
Cosmochemistry, Extraterrestrial materials, FIB, S/TEM
Ph.D., Stanford University, 2002
+1 808 956 7755


Hope Ishii studies extraterrestrial materials and how they inform us about small solar system body formation, evolution, and inter-relationships. She focuses primarily on fine-grained, early solar system materials and processing and incorporation of presolar and interstellar dust into rocky asteroids and icy comets. Her cosmochemistry research is funded by NASA.

Hope’s current projects include studies of comet dust from NASA’s Stardust mission, asteroid dust from JAXA’s Hayabusa mission, lunar samples recently opened from NASA’s Apollo missions, cosmic dust collected on Mauna Loa, and space weathering of extraterrestrial and analog samples, some in the presence of volatiles relevant to the Moon. She serves as Vice-Chair of NASA’s Curation and Analysis Planning Team for Extraterrestrial Materials and as the Cosmic Dust Subcommittee Chair. She is Deputy Sub-team Leader for initial analysis of asteroid Ryugu small grains for JAXA’s Hayabusa2 mission, returning to Earth late in 2020. Interested students are encouraged to contact her by email about potential research projects.

Hope’s primary tools are the focused ion beam instrument (FIB) and aberration-corrected (scanning) transmission electron microscope (S/TEM) in the Advanced Electron Microscopy Center at the University of Hawai’i at Mānoa, of which she is Director. Her group also uses the Molecular Foundry and Advanced Light Source (synchrotron) at Lawrence Berkeley Laboratory. These instruments provide microscopy and X-ray and electron spectroscopies at sub-millimeter down to atom scales. Hope is a materials scientist by training, interested in both natural and technological materials. She regularly participates in a variety of materials research led by other UH faculty, including, for example, volcanic, high pressure, solar energy, and hydrogen storage materials.

Hope has taught undergraduate courses on the solar system (ERTH105, 107), contributed to experimental methods in materials research (ME 435), and her graduate-level course on electron and ion beam microscopy (ERTH 710/711) is taken by Engineering as well as Earth and Planetary Science students.

Sample Return Missions:

Mailing Address
Hawai‘i Institute of Geophysics and Planetology
University of Hawai‘i at Mānoa
1680 East-West Road, POST Building, Office 602
Honolulu, HI 96822
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