Fig. 1.  Mars-like landscape in the Atacama Desert near Sampling Site Yungay (YU).

Fig. 2. Sampling at Site Lomas Bayas (LB).

Fig. 3. Atmospheric water collection station at Site Lomas Bayas (LB) with Lewis Dartnell standing.

Fig. 4. Sampling at Site Maria Elena (ME). To the left Dirk Schulze-Makuch, to the right Alfonso Davila.