1. Center for Earth and Planetary Studies, National Air and Space Museum; Smithsonian Institution; Washington District of Columbia USA
2. Planetary Science Institute; Tucson Arizona USA
3. Lunar and Planetary Laboratory; University of Arizona; Tucson Arizona USA
4. School of Earth Sciences; China University of Geosciences; Wuhan Hubei China
5. Centre for Earth Evolution and Dynamics; University of Oslo; Oslo Norway
6. School of Earth and Space Exploration; Arizona State University; Tempe Arizona USA
7. Department of Space Studies; Southwest Research Institute; Boulder Colorado USA
8. Lamont-Doherty Earth Observatory; Columbia University; Palisades New York USA
9. Department of Terrestrial Magnetism; Carnegie Institution of Washington; Washington District of Columbia USA
10. Department of Geology; University of Georgia; Athens Georgia USA
11. Lunar and Planetary Institute; Universities Space Research Association; Houston Texas USA