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Pink arrows point to spherical, radiating aggregates of gypsum crystals observed in the lower part of stromatolitic sample from Salar de Pajonales in northern Chile. These structures illustrate gypsum mineralization

Keith Cowing Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻 Follow on

Io – NASA Io’s internal heat is generated by Jupiter-driven tidal dissipation and Laplace resonance. This energy partially melts the mantle, but the melt fraction, depth, and spatial distribution of

HCN rainout rate over the conjoint parameter space of stellar effective temperature (Teff ) and effective solar flux in current Earth values (Seff ) and C/O ratio. a) Baseline Archean

Temperature distributions and thermal phase curves of the TRAPPIST-1 e system. Panel (a): Snapshot of the effective emission temperature of TRAPPIST-1 e. Panel (b): Snapshot of the surface temperature distribution

The figure shows the HPLC Chromatograms of Amino Acids produced in the Sample B5 irradiation run. — astro-ph.EP The emergence of habitable conditions on the early Earth and on rocky

The network of important reactions for the carbon, sulfur, and coupled organosulfur chemistry in the atmosphere of K2-18b. Pathway B (following R. Hu et al. (2025)) dominates the DMS and

Optical depth maps of the near-IR H2O, CO2, and CO ice features in the disk sample, calculated for pixels with a >3σ detection across the ice band. For clarity, the

ID: ESP_054090_1985 date: 9 February 2018 altitude: 280 km larger image One of the final three candidate landing sites for the Mars 2020 mission was northeast Syrtis, along with Gusev