1. University of Oxford
2. Imperial College London
3. Yunnan Observatories, Chinese Academy of Sciences
4. Institut Superieur de l'Aeronautique et de l'Espace
5. ETH Zurich
6. Independent Researcher
7. Los Alamos National Laboratory, Université de Paris
8. Jet Propulsion Laboratory, California Institute of Technology
9. AMSAT-Deutschland
10. University of Bristol
11. Royal Observatory of Belgium
12. Université de Paris
13. Los Alamos National Laboratory
14. University of Maryland/Michigan State University
15. China University of Geosciences/Brown University
16. Université Côte d'Azur
17. Sorbonne Université/Institut Universitaire de France
18. Center for Lunar and Planetary Sciences, Chinese Academy of Sciences/Center for Excellence in Comparative Planetology, Hefei
19. Université de Paris, Institut de Physique du Globe de Paris
20. Brown University