This photo shows something that beads up like water on the supporting leg of the Phoenix Mars Lander. The University of Michigan Astronomy and Department of Atmospheric, Oceanic and Space Sciences professor Dr. Nilton Renno is a co-investigator on the Phoenix Mission. Dr. Renno et al. submitted "Physical and Thermodynamical Evidence for Liquid Water on Mars" to the Journal of Geophysical Research.
Read more about the bat space program.