Tootfinder

Miniature Dungey-like cycle at Mars: #Mars: https://science.nasa.gov/missions/maven/nasas-maven-illuminates-new-understanding-of-auroras-at-mars/

#marswaterhistory

Stratigraphy Preserved on the Jezero Crater Rim Reveals Repeated Impacts on Early Mars: #Perseverance Rover Reads Record of Ancient #Mars #Impacts: https://www.nasa.gov/solar-system/planets/mars/nasas-perseverance-rover-reads-record-of-ancient-mars-impacts/

Revised dust content and grain size of exposed water ice at the North Pole of Mars: #Mars is less dusty than scientists thought: https://www.washington.edu/news/2026/09/29/the-north-pole-of-mars-is-less-dusty-than-scientists-thought/

Thermal Detectability of Subsurface Water Ice on Mars - A Comparative Analysis for the Subsurface Water Ice Mapping (SWIM) Project / Subsurface Water Ice Mapping on Mars - A Probabilistic Approach: #Mars: Resources and Science Targets": https://iopscience.iop.org/collections/PSJ-250131-01

More data from the #Mars flyby by the #Psyche spacecraft in May have been received: #asteroid Psyche in 2029.

Iron microbialites from an acidic Martian analog (Río Tinto, Spain)—Implications for finding life on Mars: #Mars: https://www.uni-goettingen.de/en/3240.html?id=8237

A consolidated Mössbauer spectrum for undisturbed soils from #Gusev Crater, Mars: #Spirit Rover landed on #Mars, ECU's Paulo de Souza has made a remarkable new discovery using data from the historic mission.

Tidal tomography reveals a thermal anomaly beneath Mars’s crustal dichotomy: #Mars

From #AliMcForever @alimcforever@instagram.com
🧵 👇
He cannot go to #Mars. The #science — #NASA's own …

Turbulence-coupled Electrodynamics of the Martian Year 34 Global Dust Storm on #Mars: https://iopscience.iop.org/article/10.3847/PSJ/ae69db -> UAH researcher finds martian dust storms may generate atmospheric electrical conditions that could impact Mars missions: https://www.uah.edu/news/news/uah-researcher-finds-martian-dust-storms-may-generate-atmospheric-electrical-conditions-could-impact-mars-missions

How the #Viking1 #Mars landing 50 years ago #OTD was covered on U.S. TV news then: https://www.youtube.com/watch?v=JDiiPhNs2Xw

50 years ago #OTD NASA's #Viking1 landed on #Mars: https://en.wikipedia.org/wiki/Viking_1 - here is part of the first image sent from the surface. The camera was a horizontally rotating scanner moving left to right: the early vertical columns are brighter because dust from touch-down hadn't settled yet.

Social interactions in isolated, confined, and extreme environments - a study of Antarctic winter teams using wearable sensors: #Antarctica #Moon #Mars

Hey, #Mars is back in the sky, kind of: during this dawn's #NLC observations - #Pleiades and got it photographically (1 second at f/2.8 and ISO 800) but couldn't see either object naked-eye.

Martian Dust Exposure Limits - Permissible Exposure Limits (PELs), toxicological risks, and health standards for Martian dust as discussed by the #Mars dust working group (February 20 and 27, 2026): https://www.nasa.gov/wp-content/uploads/2026/07/martian-dust-exposure-limits-sp-20260005907.pdf -> Establishing Crew Exposure Limits of Martian Dust / A Rutgers mineralogist and planetary scientist helps NASA develop a limit for future astronauts: https://www.nasa.gov/general/establishing-crew-exposure-limits-of-martian-dust/ / https://www.rutgers.edu/news/mars-attacks-how-much-dust-red-planet-safe-breathe

Artistic visions shape and respond to #Mars missions: https://www.pnas.org/doi/10.1073/pnas.2622471123 -> "decades before humans might actually travel through interplanetary space, artistic visions continue to help nurture those aspirations."

Global Circulation of Martian Ionospheric Currents Revealed by #Magnetometer Data: #Mars with Magnetic Field Data: #MAVEN satellite track magnetic fields on Mars; it can also track atmospheric circulation, using machine learning.

Direct Detection of Hydrogen Reveals a New Macroscopic Crustal Water Reservoir on Early #Mars: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2026GL121841 -> What a dry meteorite tells us about water on Mars: https://www.psi.ch/en/news/media-releases/what-a-dry-meteorite-tells-us-about-water-on-mars