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Indigenizing The Drake Equation: How Indigenous Methods Can Help Us Understand Life In The Milky Way Galaxy
[astro-ph.IM] The Drake Equation is a thought experiment whose purpose is to understand the ingredients necessary for life and advanced technological civilizations to exist on other worlds in our galaxy. However, beyond reflecting on life on Earth, we have no knowledge of many of these ingredients, such as the number of planets that have life,…
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NASA Spaceline Current Awareness List #1,205 26 June 2026 (Space Life Science Research Results)
[NASA] The abstract in PubMed or at the publisher’s site is linked when available and…
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…
Ecological Constraints To Mirror Life
[bioRxiv] Our biosphere exhibits remarkable diversity yet is constrained by universal organizational principles, including molecular…
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…
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…
Evidence For Possible N2 Basal Flow Beneath Pluto Northern Sputnik Planitia
[astro-ph.EP] Sputnik Planitia (SP) on Pluto is a large, predominantly N2 ice-filled basin with a…
Implications Of Self-consistent H2O Ice Optical Constants On Radiative Transfer Models Of Disks
[astro-ph.EP] Interstellar water (H2O) ice exhibits significantly varied profiles over its spectral features with temperature…
A Look At Eight Outbursts Of Comet 7P/Pons-Winnecke
Cometary outbursts may be used as a means to infer the physical processes occurring on…
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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Habitable Zones
Astronomy & Telescopes
Atmospheres, Climate, Weather
An Agnostic Machine Learning Model of Photosynthetic Habitability
The search for exoplanet biosignatures is guided by whether planetary environments can sustain photosynthesis. As such, the Photosynthetic Habitable Zone (PHZ) was recently proposed, as the overlap between the canonical habitable zone and the orbital range where stellar irradiance is sufficient to drive photosynthesis. Existing PHZ estimates rely on empirical light-response curves from Earth phytoplankton,…
Read moreExploration Gear & Tech
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…
Tricorder Tech: ESA CAVES 2026 Cavenauts Use An Electronic FieldBook
Astronauts Tracy Dyson (NASA), Rosemary Coogan (ESA) and Ayu Yoneda (JAXA) measuring water parameters and recording them in the Electronic FieldBook during ESA CAVES2026 course.…
Imaging & Spectroscopy
Mars Perseverance Image of the Week for Week 280 (June 21 – 27, 2026)
[NASA] This photo was selected by public vote and featured as “Image of the Week” for Week 280 (June 21 – 27, 2026) of the…
NASA’s Backyard Worlds: Binaries Project
Some stars have planets. Others are orbited by brown dwarfs, balls of gas too massive to be planets, but too low-mass to be stars. Astronomers…
Long-Period Comets’ Orbits Reflect Close Passage by Star HD 7977
The Gaia mission has allowed researchers to understand the motions of stars like never before, even revealing possible interactions between our Solar System and nearby…
Biosignatures & Paleobiology
Organic Carbon Detected In The Bright Angel Formation On Mars
In September of last year, NASA announced that its Perseverance rover discovered a potential biosignature, which is a substance or structure that might have a…
Lipid Biomarkers In Microbialites From A Maar Lake: An Astrobiological Study Of Biomarker Preservation under Mars Analog Conditions
Lipids constitute resistant biomarkers that have been proposed as pacemakers in the search for possible microbial life-forms in Mars’ past. The extreme conditions on the…
Thermal And Rotational Effects Of Giant Impacts During Terrestrial Planet Accretion
Terrestrial planets likely experienced one or more giant impacts during their formation that inflicted large thermal, chemical, and rotational perturbations. The early states of terrestrial…