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Perseverance Astrobiology Rover – A Selfie While Working
[NASA] NASA’s Perseverance Mars rover took this selfie on March 11, 2026, the 1,797th Martian day, or sol, of the mission, during the rover’s deepest push west beyond Jezero Crater. Assembled from 61 individual images, the selfie shows Perseverance training its mast on the “Arathusa” rocky outcrop after creating a whitish circular abrasion patch. The…
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NASA ROSES-25 Amendment 60: Due Date Extended for C.2 Solar System Science
[NASA] C.2 Solar System Science solicits proposals for research, data analysis, data preservation, and tools…
Demographics Of Planet-forming Disks With The SKAO
[astro-ph.EP] Understanding how solid material in planet-forming disks evolves from micron-sized dust to planetary cores…
Chemical Abundances of the Bioessential Elements C, O and S, and the Refractory Elements
[astro-ph.EP] We determined atmospheric and evolutionary parameters, along with chemical abundances of C, O, S,…
Narrowband Radio Technosignature Search Toward 3I/ATLAS with FAST
[astro-ph.IM] 3I/ATLAS is the third confirmed interstellar object passing through the Solar System. In this…
C,N,O,S, And Photochemistry In A Temperate Giant Planet Orbiting A Late M Dwarf
[astro-ph.EP] We report the JWST NIRSpec/PRISM transit spectrum of TOI-6894b, an exceptional 420 K sub-Saturn…
Charge Transfer From Ammonia Neutralizes Propylene Oxide Cations: Implications For The Astrochemistry Of Chiral Molecules
[astro-ph.GA] To date only one chiral species, propylene oxide, has been observed in the interstellar…
Earth As A Potential Source Of Llife For Europa’s Subsurface Ocean
The paper discusses the possibility of dust particles containing living bacteria ejected from Earth reaching Europa and landing on its surface. It is shown that, taking certain factors into account, over a period of 30 − 80 Myr (the estimated age of Europa’s ocean), Jupiter’s moon would have been impacted…
Keep readingDust To Dust: Prospects For Passive Technosignatures As Relics Of ETI
Technological societies are separated in time, not just space — that is the lesson of the Drake equation. Might the best way to seek them be to find technosignatures that persist long after their creators? I present work I and my collaborators have done on the idea of passive technosignatures,…
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Atmospheres, Climate, Weather
Orbital Biosignature Assay: Summer Algal Bloom Spreads Across The Baltic Sea
[European Union] During the summer months, large algal blooms occur frequently in the Baltic Sea. Often driven by warmer temperatures, abundant sunlight, and nutrient-rich waters, these blooms can reduce water quality and affect marine life. In late June 2026, a new algal bloom was observed across parts of the Baltic Sea. This image, acquired by…
Read moreExploration Gear & Tech
Ocean Planet Expeditions: Alvin Submersible Certified To Return To Service
Editor’s note: Submersibles and oceanic exploration have a long history of intersection and collaboration. NASA Astronaut Loral O’Hara was a research engineer at Woods Hole…
Ocean Planet Exploration: New University of Rhode Island Ocean Robotics Laboratory
[URI] The University of Rhode Island celebrated a major milestone in the $300 million, multi-phase revitalization of the Narragansett Bay Campus with a ribbon cutting…
Perseverance Astrobiology Droid Has Completed A Martian Marathon
[NASA] On June 14, 2026, Mars Perseverance rover completed a Martian “marathon” by surpassing 26.2 miles (42.195 kilometers) of travel. The day before, NASA’s Mars…
Imaging & Spectroscopy
Theoretical and Experimental IR Spectra of Astronomical PAHs and PANHs in the 2000–1650 cm–1 Range (∼5–6 μm)
[ACS Earth and Space Chemistry] Recent James Webb Space Telescope observations reveal unprecedented details in the 2000–1650 cm–1 (∼5–6 μm) region, including the well-known 5.25…
Theoretical Determination Of The Binding Energies Of Methanol And Related Species Onto Amorphous Solid Water Ice
[astro-ph.GA] The formation and survival of complex organic molecules (COMs) in cold interstellar environments depends on their interactions with icy dust grain surfaces. Methanol, a…
Probing Outflow Physics Through CH3CN And CH3OH Chemistry
[astro-ph.GA] Chemical correlations between molecules provide powerful diagnostics to probe the physical conditions of protostellar outflows. In particular, the relationship between methanol (CH3OH) and methyl…
Biosignatures & Paleobiology
The Impact of the Viking Entry, Descent, and Landing Legacy on Future Mars ExplorationAstrobiology
[Astrobiology] This article outlines engineering challenges that were involved in the design innovations required to successfully deliver not one but two landers for Viking. The…
Unraveling The Building Blocks Of Earth’s Pigments
[Ohio State] Although they are some of the most widespread substances on Earth, not much is known about eumelanin, or natural organic matter (NOM) —…
Nautilus: Fast Time-Resolved Spectroscopy of GKM Stellar Flares and Their Implications for Planetary Habitability
[astro-ph.SR] Low-mass GKM dwarfs are prime targets for finding habitable-zone Earth-sized planets, but their frequent flares, especially on M~dwarfs, can strongly affect planetary atmospheres through…