1. Department of Computer Science, Electrical and Space Engineering, Luleå University of Technology, Luleå, Sweden
2. * E-mail: davfer@ltu.se
3. Centre for Planetary Science and Exploration (CPSX), Department of Earth Sciences, University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
4. ESCET-Área de Geología, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
5. Institute for Planetary Materials, Okayama University, Misasa, Tottori, 682-0193, Japan
6. Planetology and Habitability Department, Center of Astrobiology (INTA-CSIC), Torrejón de Ardoz, 28850 Madrid, Spain
7. Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain