[astro-ph.EP] Recent thermal emission observations suggest that `lava worlds’–Earth-sized exoplanets hot enough to melt their silicate surfaces–have atmospheres on a population-level.
Biogeochemical Cycles & Geobiology
Posted inLava / magma ocean / Volcanic Worlds
Thermal Evolution of Lava Planets Across System Ages: Predictions for Hell of a Survey
[astro-ph.EP] Ultra-short-period (USP) rocky exoplanets can have dayside temperatures high enough to maintain permanent magma oceans, sitting at the intersection of interior geophysics and atmospheric chemistry. Coupled feedbacks between the […]
![Comparison of isovalent species including sulfinothioic acid (1a, HSS(O)H) and recently detected hydrogen trioxide (trans‐/cis‐HOOOH). The calculated geometries of 1a were completed at the CCSD(T)‐F12/cc‐pVTZ‐F12 level of theory. This geometry is compared with calculated geometries of hydrogen trioxide from Bai et al. [17]. -- Agendwante Chemie via PubMed](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/09/Interstellar-Ice.jpg?resize=1200%2C722&ssl=1)
Posted inAstrochemistry
Interstellar Ice Chemistry Yields Elusive Sulfinothioic Acid (HS(O)SH)
[Agendwante Chemie via PubMed]. Low-oxidation-state sulfur oxyacids are key yet experimentally elusive intermediates in interstellar sulfur chemistry; even the simplest member, sulfinothioic acid (HS(O)SH), has neither been detected in space […]
Posted inEuropa
Europa Smooth Plains Formation: A SPH Cryovolcanic Model
[astro-ph.EP] Cryovolcanism is a fundamental geodynamical process that has been observed on several icy moons. Europa stands out as a primary target for investigating potential cryovolcanic activity and its role […]
Posted inMicrobiology & Virology
Dispersal Pathways And Infection Strategies Within The Global Halophilic Virome
[ISME Communications] Microbial biogeography has recently attracted significant attention for its potential to provide novel ecological and evolutionary insights, with environmental connectivity emerging as a key factor in the global […]
Posted inComets and Asteroids
Mystery Surrounding The Formation Of Asteroid Bennu Solved
[ETH Zurich] The asteroid Bennu orbits the Sun once every 1.2 years and approaches Earth every six years, passing within around 300,000 kilometres. NASA took advantage of this to collect […]
Posted inHabitable Zones
Inside the Eirenesphere: The Interplay of Porosity, Heat Flux and Mineralogy in Exoplanetary Aquable and Habitable Layers
[astro-ph.EP] The classical circumstellar habitable zone restricts the search for life to planetary surfaces where stellar irradiation sustains liquid water, overlooking vast subsurface environments.
Posted inTricorders & Sensors
Tricorder Tech: What A Spacefaring Arctic Microbe Reveals About Life in Alien Oceans
[ISS National Laboratory] It lives in places where life should not exist. In the brine channels that thread through Arctic sea ice, it survives temperatures that would freeze most bacteria […]
Posted inExtremeophiles and Extreme Environments
Hot Spring Organism Breaks Record For Heat Tolerance Of Complex Life
[Cell Press] A tiny, single-celled organism can thrive at temperatures that would kill all other known complex life.
Posted inMars
Study Finds An Ancient History Of Water On Mars That Shifted Over Time
[Purdue University] From orbit, a carbonate-rich band of rock along the inside edge of Mars’ Jezero Crater looked like it might be the remains of an ancient lakeshore. Then NASA’s […]