1. Radiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Linder Hoehe, 51147 Cologne, Germany
2. Department of Internal Medicine, Medical University of Graz, Auerbruggerplatz 15, 8010 Graz, Austria
3. Department of Microbiology and Archaea, University of Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
4. UK Center for Astrobiology, School of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, EH9 3FD, Edinburgh, UK
5. BioTechMed Graz, Mozartgasse 12/II, 8010 Graz, Austria
6. MATISProkaria, Vinlandsleid 12, 113 Reykjavík, Iceland
7. Faculty of Food Science and Nutrition, University of Iceland, Vatnsmýrarvegur 16, 101 Reykjavík, Iceland
8. Leiden Observatory, Universiteit Leiden, Niels Bohrweg 2, 2333 Leiden, Netherland
9. Space Policy Institute, George Washington University, 1957 E Street, 20052 Washington DC, USA
10. Instituto Nacional de Técnica Aeroespacial-Centro de Astrobiología (INTA-CAB), Torrejón de Ardoz, 28850 Madrid, Spain
11. Centro de Biología Molecular Severo Ochoa, Universidad Autónoma de Madrid (UAM), Calle Nicolás Cabrera 1, 28049 Madrid, Spain
12. Centre de Biophysique Moléculaire, Centre National de la Recherche Scientifique (CNRS), Rue Charles Sadron, 45071 Orléans, France
13. European Science Foundation (ESF), Quai Lezay-Marnésia, 67080 Strasbourg, France