Donato Giovannelli¹, Joy Buongiorno², Anirudh Prabhu³, Ahmed Eleish³, Fang Huang³, Peter Arthur Fox³, Robert Hazen⁴ and Shaunna M Morrison⁴, (1)University of Naples Federico II, Department of Biology, Naples, Italy, (2)University of Tennessee, Knoxville, TN, United States, (3)Rensselaer Polytechnic Institute, Tetherless World Constellation, Troy, NY, United States, (4)Carnegie Institution for Science, Geophysical Laboratory, Washington, DC, United States