Measure superoxide and peroxide reactive oxygen species on planetary surface (of Mars and Europa), terrestrial arid soils and icy surfaces. Construct an oxidant (superoxideandperoxide) detection instrument to study Mars topsoil oxidant chemistry, select non-oxidant sites on Mars/Europa for the identification of biomarkers of extraterrestrial life (extinct/extant), select least oxidant Mars sites for safe colonization by humans, study microorganisms' survival in ROS generating arid desert soils, and test cos-mic/UV radiation-induced oxidative deterioration of the metal frame of manned spaceships from ROS. For the re-mote control of such instrument, intelligent equipment should be developed.