Results 1 to 10 of about 27,009 (172)

Searching for extraterrestrial life advances terrestrial sustainability [PDF]

Nature Communications
Astrobiology, while traditionally focused on understanding the origin of life on Earth and the potential for life elsewhere, offers powerful tools and insights for addressing urgent challenges on our planet.
Alta E. G. Howells, Catherine G. Fontana, Sabrina Elkassas, Tristan A. Caro, Srishti Kashyap   +4 more
doaj   +2 more sources

“Salt Tectonics” on Titan: Radial Labyrinths as Topographic Expressions of Solid‐State Flow

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Surface observations of Saturn's moon Titan revealed features characterized as dissected, elevated plateaus with high valley density known as labyrinth terrains. Of this terrain class, a subtype referred to as radial labyrinth is described as dome‐shaped uplifts with radial channel patterns.
Ashley M. Schoenfeld, Steven D. Vance, Rosaly M. C. Lopes, Michael J. Malaska, Michael Bland   +4 more
wiley   +1 more source

Viability and Motility of Escherichia coli Under Elevated Martian Salt Stresses

Life
This study investigates the effects of three Martian-relevant salts—sodium chlorate, sodium perchlorate, and sodium chloride—on the viability and motility of Escherichia coli, a model organism for understanding microbial responses to environmental stress.
Max Riekeles, Berke Santos, Sherif Al-Morssy Youssef, Dirk Schulze-Makuch   +3 more
doaj   +1 more source

A New Record for Microbial Perchlorate Tolerance: Fungal Growth in NaClO₄ Brines and its Implications for Putative Life on Mars

Life, 2020
The habitability of Mars is strongly dependent on the availability of liquid water, which is essential for life as we know it. One of the few places where liquid water might be found on Mars is in liquid perchlorate brines that could form via ...
Jacob Heinz, Tim Krahn, Dirk Schulze-Makuch   +2 more
doaj   +1 more source

Structure of Jupiter's High‐Latitude Storms: Folded Filamentary Regions Revealed by Juno

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Sprawling, turbulent cloud formations dominate the meteorology of Jupiter's mid‐to‐high latitudes, known as Folded Filamentary Regions (FFRs). A multi‐wavelength characterization by Juno reveals the spatial distribution, vertical structure, and energetics of the FFRs.
L. N. Fletcher, Z. Zhang, S. Brown, F. A. Oyafuso, J. H. Rogers, M. H. Wong, A. Mura, G. Eichstädt, G. S. Orton, S. Brueshaber, R. Sankar, C. Li, S. M. Levin, F. Biagiotti, T. Guillot, A. P. Ingersoll, D. Grassi, C. J. Hansen, S. Bolton, J. H. Waite   +19 more
wiley   +1 more source

Microbial preference for chlorate over perchlorate under simulated shallow subsurface Mars-like conditions

Scientific Reports
The Martian surface and shallow subsurface lacks stable liquid water, yet hygroscopic salts in the regolith may enable the transient formation of liquid brines.
Florian Carlo Fischer, Dirk Schulze-Makuch, Jacob Heinz   +2 more
doaj   +1 more source

Investigating the Composition and Metabolic Potential of Microbial Communities in Chocolate Pots Hot Springs

Frontiers in Microbiology, 2018
Iron (Fe) redox-based metabolisms likely supported life on early Earth and may support life on other Fe-rich rocky planets such as Mars. Modern systems that support active Fe redox cycling such as Chocolate Pots (CP) hot springs provide insight into how ...
Nathaniel W. Fortney, Shaomei He, Shaomei He, Brandon J. Converse, Eric S. Boyd, Eric E. Roden   +5 more
doaj   +1 more source

Short‐Term Effect of Mars‐Like Radiation on Carbon and Oxygen Isotope Compositions of Carbonates

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract The stable isotope composition of carbonates records the environmental formation conditions and can indicate potential biosignatures if formed biologically. Martian meteorite carbonates display unusually high δ13C values, not explained using known terrestrial processes.
Nicolas Randazzo, Sang‐Tae Kim, Fabien Stalport, Maikel C. Rheinstäder, Hervé Cottin, Patrice Coll   +5 more
wiley   +1 more source

The New Space Race Era: The Exogeoheritage Challenge and Its Conservation

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract The escalating pace of space exploration has ushered in a new era reminiscent of the space race of the 1960s. However, the discourse on exogeoconservation—the protection of geological heritage—now demands a prominent place in decision‐making processes.
B. De Toffoli
wiley   +1 more source

Is the Pale Blue Dot unique? Optimized photometric bands for identifying Earth-like exoplanets

, 2016
The next generation of ground and space-based telescopes will image habitable planets around nearby stars. A growing literature describes how to characterize such planets with spectroscopy, but less consideration has been given to the usefulness of ...
Arney, Giada, Catling, David C., Charnay, Benjamin, Krissansen-Totton, Joshua, Meadows, Victoria, Robinson, Tyler D., Schwieterman, Edward W.   +6 more
core   +1 more source