- Senior Scientist, IGEO (CSIC-UCM) - Head, CSIC's Research Group "Meteorites and Planetary Geosciences" - Science Team Member, NASA-MSL, ESA-ExoMars and MARS2020 - Collaborator, ESA-BIOMEX - Founder and Director, Spanish Planetology and Astrobiology Network (REDESPA) - Professor "Ad Honorem" of Planetary Geochemistry, ETSII (Polytechnic University of Madrid) - Chair, IUGS Commission on Geoscience Education, Training and Technology Transfer (IUGS-COGE) - President, International Association for Geoethics (IAGETH) - OC Member, International Commission on Astrobiology, IAU - Science Officer (Origins and Astrobiology) EGU Division of Planetary and Solar System Sciences - Councilor, European Astrobiology Network Association - Goodwill Ambassador, Geological Society of Africa - Coordinator of AGID National Chapter in Spain (mainly devoted to Geoethics) - National Focal Point, Earth Science Matters - Senior Advisory Board Member, Arabian Geosciences Union (AraGU) - Former Regional Coordinator in Spain, TPS-Spain, The Planetary Society - Founder and Former Head (CSIC), Associate Unit (CSIC-University of Valladolid) "Spectroscopy in Cosmogeochemistry and Astrobiology" - Former Head, Department of Planetology and Habitability, Centro de Astrobiologia, CSIC-INTA, associated to the NASA Astrobiology Institute) - Former Head of the Planetary Geology Laboratory, CAB (CSIC/INTA), associated to the NASA Astrobiology Institute - Ex-Vice Chairman of the United Nations Commission on Science and Technology for Development (UNCSTD). - Former Expert Member of the UN (ECOSOC) Committee on Natural Resources representing Western European Countries