Professional activities (partial list):

D. Bindschadler: Member, Magellan Gravity Science Team; Invited participant, Japan Science and Technology Agency (STA) Forum: "Evolutionary Hisory of the Earth's Environment back to 4.0Ga," Fukuoka, Japan, March, 1993; Co-convenor, "Application of Deformation Rheology to Planetary Tectonics," special session at the Fall 1992 AGU Conference, San Francisco.

J. Luhmann: Member, NASA MARS Working Group; Member, Steering Committee, NASA Mars Data Analysis Program (MSATT); Member, Advisory Board, Lunar and Planetary Institute; Member, NASA Visiting Senior Scientist Advisory Group; Associate Editor, JGR Plnnets.

C.T. Russell: Chair, NASA Planetary Sciences Data Steering Group; Member, DPS Awards Committee; Member, IJW Steering Committee.

G. Schubert: Co-organizing session for Fall 1993 AGU on "Is there subduction on Venus," with R. Phillips; Editor, special section entitled "Processes in Geodynamics," to be published in JGR later this year in honor of Donald Turcotte's 60th birthday.

P. Warren: Member, NASA Lunar and Planetary Geoscience Review Panel (recommends funding allocations for planetology research grants); Member, NASA Lunar Exploration Science Working Group (involved with intermediate-term planning for future lunar missions); Member, NASA Curation and Analysis Planning Team for Extraterrestrial Materials; Member, NASA Program Committee of the annual Lunar and Planetary Science Conference.

J. Wasson: Invited lecturer, October, 1992, Seoul National University, Korean Oceanographic Institution, Korean Geological Survey.