Fig. 1. Temperature profiles of the complete mission starting from shortly before handover of the flight hardware until the retrieval of the samples. Temperature was logged by thermosensors every 10 min on the top of every experimental unit. A) Four units were installed in KUBIK 5 for the 7-day experiment. B) Another four units were installed in KUBIK 6 for the 14-day experiment. The phase when living cells were exposed to r-µg is drawn in grey. It ended with fixation. Dashed lines at 37.5°C and 0.5°C represent the maximum and minimal required temperature, respectively. EU: Experimental unit.