There's need to characterize the habitability conditions of a cave environment, be it the availability of water, energy sources and chemical potential. But also to determine if signatures of life are present in
Following the water, the new program for Mars exploration - Hubbard, Naderi, et al. - 2002 () Citation Context ...availability of phosphorus. Thus, most extraterrestrial life, like terrestrial life, should be based on water as a solvent. Hence, in its search for extraterrestrial life, NASA...
The detection of liquid water by the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) at the base of the south polar layered deposits in Ultimi Scopuli has reinvigorated the debate about the origin and stability of liquid water under present-day Martian conditions. To establish...
Incomplete geological constraints have led global models of the early Mars water cycle and climate to produce diverging results5,6. Here we report observations by the Curiosity rover at Gale Crater indicating that high-frequency wet–dry cycling occurred in early Martian surface environments. We ...
Our results suggest that the stratigraphy of Aeolis Dorsa is a record of liquid water availability (and aeolian sediment input), and because physical models indicate that liquid–water availability is strongly influenced by orbital forcing, we hypothesize that orbital forcing was a Conclusions We ...
Special Regions on Mars are defined as environments able to host liquid water that simultaneously meets certain temperature and water activity requirements that allow known terrestrial organisms to replicate1,2 and therefore could be habitable. Such regions would be of concern for planetary protection po...
In contrary to open environments, confined habitats have restrictions on waste disposal, water and fresh air supply, as well as on personal hygiene. The unusual environmental conditions may result in bad air quality, water condensation or accumulation of biological residues and formation of microbial ...
Water (0.9–2.5 wt%) was detected in every sample from a variety of sources (e.g., adsorbed water, hydrated salts, phyllosilicates). Detections of SO2 are linked to the presence of iron and magnesium sulfates and possibly iron sulfides (McAdam et al., 2014; Franz et al., 2016; Sutter...
space sheltered from ultraviolet and cosmic radiation and provided a solvent, whereas the below-ground temperature2 and diffusion6,7 of a dense, reduced atmosphere8,9 may have supported simple microbial organisms that consumed H2 and CO2 as energy and carbon sources and produced methane as a ...
T. et al. Magnesium sulphate salts and the history of water on Mars. Nature 431, 663–665 (2004). Article Google Scholar Fox-Powell, M. G., Hallsworth, J. E., Cousins, C. R. & Cockell, C. S. Ionic strength is a barrier to the habitability of Mars. Astrobiology 16, 427–...