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NASA Spaceline Current Awareness List #1,209 24 July 2026 (Space Life Science Research Results)
The abstract in PubMed or at the publisher’s site is linked when available and will open in a new window. Papers deriving from NASA support: Other papers of interest: astrobiology, Microgravity, NASA, space biology, space medicine, spaceline,
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NASA SMD ROSES-25 Amendment 68: New Opportunity: D.8 Habitable Worlds Observatory Precursor Science Investigations
[NASA]. The Habitable Worlds Observatory (HWO) is a large-aperture ultraviolet/visible/near-infrared observatory concept recommended by the…
The Viking’s 50 Year Landing Anniversary Astrobiology Special Collection: Reexamining the Revolutionary Impact of Viking on Mars Exploration
[ Astrobiology (Journal) ] The NASA Viking Program laid the framework for Mars science, technology,…
Extraordinary Creatures: Tardigrades
[Journal of Experimental Biology] Tardigrades are tiny ecdysozoans – creatures that grow by shedding their…
Experimental Measurements of Benzene Ice Critical Saturation Ratios on Titan Tholins and Impact on the Microphysical Modeling of Titan’s South Polar Benzene Cloud
[astro-ph.EP] The Cassini Composite Infrared Spectrometer (CIRS) revealed the presence of a benzene (C6H6) ice…
Planetesimal Formation Across the Stellar Mass Spectrum and its Influence on Exoplanet-Inherited Volatile Budgets
[astro-ph.EP] Protoplanetary discs emerging from collapsing molecular clouds are capable of forming planetesimals at the…
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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Astronomy & Telescopes
Atmospheres, Climate, Weather
Atmospheric Retrieval Evidence For Water Isotopologue HDO On Exoplanet WASP-39b
[astro-ph.EP] Hydrogen-isotopologues are commonly used to trace the chemical processing and origin of hydrogen-bearing species throughout the Universe, however, their abundance remains unconstrained for extrasolar planets. Here, we report atmospheric retrieval evidence for the deuterated water molecule HDO in an exoplanet atmosphere, retrieved from James Webb Space Telescope transmission spectra of the hot Jupiter WASP-39…
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Where Was This Fossil 200 Million Years Ago?
[University of Barcelona] Calculating a fossil’s position throughout geological history is a complex process. In palaeontology and other disciplines, determining a location in the past…
TricorderTech: PerkinElmer Partners With eXXpedition Using Advanced FTIR Spectroscopy
[PerkinElmer], a global leader in analytical solutions that drive human and environmental health, today announced a partnership with eXXpedition, the all-women global sailing research organization…
Astronaut Training For Underground Science Expeditions
ESA CAVES (Cooperative Adventure for Valuing and Exercising human behaviour and performance Skills) is an ESA astronaut training program. The three-week course prepares astronauts to…
Imaging & Spectroscopy
Mars Express And Psyche Same Day Imagery of Mars
[ESA] On 15 May, whilst en route to a metallic asteroid, NASA’s Psyche mission flew just 4500 km above the surface of Mars. It was…
The Interstellar Laser Beacons Hypothesis and the Cosmic Lighthouses Project
[astro-ph.IM] In this paper, we argue that in a realistic, resource-limited scenario senders whose intent is to maximize successful communication at the lowest cost will…
Anharmonic Infrared Emission Of Cyano-Substituted Polycyclic Aromatic Hydrocarbon Molecules: Cyanonaphthalenes As A Case Study
[astro-ph.GA] Recent detections of cyano-substituted polycyclic aromatic hydrocarbons (cyano-PAHs) highlight them as key tracers of nitrogen heterocycles in the interstellar medium (ISM). However, their infrared…
Biosignatures & Paleobiology
Pinpointing Where Cells First Begin Copying DNA
[Medical Research Council (MRC) Laboratory of Medical Sciences] Every time a cell divides, it must faithfully copy its entire genetic instruction manual. Errors during this…
Tryptophan Became Part Of The Universal Genetic Code Post-LUCA
[biorxiv.org] We evaluate whether tryptophan (W), widely thought to be the last of the 20 canonical amino acids added to the genetic code, was already…
Substrate-Agnostic 3x: Biosignatures, Technosignatures, Ecologies
[physics.gen-ph] Substrate-agnostic perspectives are currently attracting increased attention. For example, it has become customary to refer to agnostic biosignatures to reflect the range of alternative…