Interstellar Updates

 

These are items of interest to the interstellar exploration community that we’ve found in our quest for information that will help us advance toward our goals.  If you know of anything we’ve overlooked, or any sources of such information we should monitor, or if you would like to be added to our IRG-updates mailing list and receive these updates in you email every weekday, please send that information to info@irg.space.

You can now search our database of interstellar updates and find items of interest to you.

October 10, 2025 updates

An Introduction to Dust Evolution and Vertical Transport in Protoplanetary Disks
https://iopscience.iop.org/article/10.1088/1538-3873/ae05cb

A Search for Coma in TESS Observations of Interstellar Comet 3I/ATLAS
https://iopscience.iop.org/article/10.3847/2515-5172/ae109f

Sensitivity to Sub-Io-sized Exosatellite Transits in the MIRI LRS Light Curve of the Nearest Substellar Worlds
https://iopscience.iop.org/article/10.3847/2041-8213/ae09ab

Space settlement and astrobiology – connections and overlaps
https://www.sciencedirect.com/science/article/abs/pii/S0265964625000517

The physiology of survival: Space
https://physoc.onlinelibrary.wiley.com/doi/10.1113/EP093299

Reassessment of Kepler’s habitable zone Earth-like exoplanets with data-driven null signal templates
https://www.pnas.org/doi/10.1073/pnas.2513927122

Probing the Origin of Water in Planets within Habitable Zones by HWO
https://arxiv.org/abs/2510.07349

Magma ocean interactions can explain JWST observations of the sub-Neptune TOI-270 d
https://arxiv.org/abs/2510.07367

Thin H2-dominated Atmospheres as Signposts of Magmatic Outgassing on Tidally-Heated Terrestrial Exoplanets
https://arxiv.org/abs/2510.07378

Enhanced Pebble Drift Across Planet-Opened Gaps in Windy Protoplanetary Disks
https://arxiv.org/abs/2510.07428

Composition of planetary debris around the white dwarf GD 362
https://arxiv.org/abs/2510.07378

How Internal Structure Shapes the Metallicity of Giant Exoplanets
https://arxiv.org/abs/2510.08280

October 09, 2025 updates

A Framework for Hyper-Velocity Interplanetary Propulsion: The Cascade Combustion Ion Technology (CComIT) Drive
https://zenodo.org/records/17297315

Searching for substellar companion candidates with Gaia – II. A catalog of 9698 planet candidate solar-type hosts
https://www.aanda.org/articles/aa/full_html/2025/10/aa51745-24/aa51745-24.html

SOAPv4: A new step toward modeling stellar signatures in exoplanet research
https://www.aanda.org/articles/aa/full_html/2025/10/aa55184-25/aa55184-25.html

Exploration of the Outer Envelope of the K-giant Star Beta Cet
https://iopscience.iop.org/article/10.3847/1538-4357/adff5d

HWO Target Stars and Systems: A Prioritized Community List of Potential Stellar Targets for the Habitable Worlds Observatory’s ExoEarth Survey
https://iopscience.iop.org/article/10.1088/1538-3873/ae0a81

Revisiting the Orbital Dynamics of the Hot Jupiter WASP-12b with New Transit Times
https://arxiv.org/abs/2510.06589

Is the high-energy environment of K2-18b special?
https://arxiv.org/abs/2510.06939

Machine Learning for Radial Velocity Analysis I: Vision Transformers as a Robust Alternative for Detecting Planetary Candidates
https://arxiv.org/abs/2510.07034

Polka-dotted Stars II: Starspots and obliquities of Kepler-17 and Kepler-63
https://arxiv.org/abs/2510.07130

JWST-TST High Contrast: Medium-resolution spectroscopy reveals a carbon-rich circumplanetary disk around the young accreting exoplanet Delorme 1 AB b
https://arxiv.org/abs/2510.07253

A Comoving Framework for Planet Migration
https://arxiv.org/abs/2510.07282

October 08, 2025 updates

SA’s ExoMars and Mars Express observe comet 3I/ATLAS
https://www.esa.int/Science_Exploration/Space_Science/ESA_s_ExoMars_and_Mars_Express_observe_comet_3I_ATLAS

6,000 and counting: The next 30 years in the search for exoplanets
https://www.space.com/astronomy/exoplanets/6-000-and-counting-the-next-30-years-in-the-search-for-exoplanets

Strategic Communication Protocols for Interstellar Objects Using a Threat-Communication Viability Index and the Information-Communication Paradox
https://arxiv.org/abs/2510.03973

Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. III. Detectability of Giant Exomoons of Wide-separation Giant Planets
https://iopscience.iop.org/article/10.3847/1538-3881/ae0196

Reassessment of Kepler’s habitable zone Earth-like exoplanets with data-driven null signal templates
https://www.pnas.org/doi/10.1073/pnas.2513927122

Orbital decay candidates reconsidered: WASP-4 b is not decaying and Kepler-1658 b is not a planet
https://arxiv.org/abs/2510.05229

The First Dedicated Survey of Atmospheric Escape from Planets Orbiting F Stars
https://arxiv.org/abs/2510.05240

Flow Regimes in Hot Jupiter Atmospheres: Insights from Anelastic Models
https://arxiv.org/abs/2510.05964

JWST-TST DREAMS: The Nightside Emission and Chemistry of WASP-17b
https://arxiv.org/abs/2510.06169

October 07, 2025 updates

Challenges of false-positive biosignatures in atmospheres of terrestrial planets
https://dspace.cuni.cz/handle/20.500.11956/203619

These alien planets are astronomers’ favourites: here’s why
https://www.nature.com/articles/d41586-025-03220-3

The Programmable Liquid-crystal Active Coronagraphic Imager for the 4-m DAG telescope (PLACID) instrument: Discovery Space and Status
https://meetingorganizer.copernicus.org/EPSC-DPS2025/EPSC-DPS2025-1774.html

How to discover a planet
https://phys.org/news/2025-10-planet.html

FInding ExoeaRths: tackling the ChallengEs of stellar activity
https://cordis.europa.eu/project/id/101052347

PoET — Paranal solar ESPRESSO Telescope
https://poet.iastro.pt/

PLATO — Planetary Transits and Oscillations of Stars: the ESA M3 mission in the Cosmic Vision 2015-2025
https://platomission.com/

Lyα Emission from K and M Dwarfs: Intrinsic Profiles, Variability, and Flux in the Habitable Zone
https://iopscience.iop.org/article/10.3847/1538-4357/ae00c1

The Impact of Enhanced Extreme-ultraviolet Flux on the Upper Atmosphere of Earth-like Exoplanets
https://iopscience.iop.org/article/10.3847/1538-4357/adff7f

Chemistry, Climate, and Transmission Spectra of TRAPPIST-1 e Explored with a Multimodel Sparse Sampled Ensemble
https://iopscience.iop.org/article/10.3847/PSJ/ae031e

The Role of Artificial Intelligence in the Discovery and Characterization of Exoplanets
https://onlinelibrary.wiley.com/doi/10.1002/9781394355518.ch3

Exploring Astrobiology and the Search for Extraterrestrial Intelligence (SETI)
https://onlinelibrary.wiley.com/doi/10.1002/9781394355518.ch11

The impact of internal versus external perturbations on close-in exoplanet architectures
https://arxiv.org/abs/2510.03401

Heat Reveals What Clouds Longitudinally Asymmetric Chemistry on LTT 9779 b
https://arxiv.org/abs/2510.04863

A Link Between Rocky Planet Density and Host Star Chemistry
https://arxiv.org/abs/2510.04981

Minimum Sample Size Calculation for Multivariable Regression of Continuous Outcomes in Chemometrics for Astrobiology and Planetary Science
https://arxiv.org/abs/2510.01210

October 06, 2025 Updates

How long does the human civilization need to last in order to observe another advanced intelligence in the Universe?
https://www.researchgate.net/publication/395989367_How_long_does_the_human_civilization_need_to_last_in_order_to_observe_another_advanced_intelligence_in_the_Universe

The Fermi Paradox Dissolved: Examining the Metaphysical Underpinnings of the Main Arguments Giving Rise to the Fermi Paradox
https://www.academia.edu/11899447/The_Fermi_Paradox_Dissolved_Examining_the_Metaphysical_Underpinnings_of_the_Main_Arguments_Giving_Rise_to_the_Fermi_Paradox

Optical Design Pathways to Fluidic Space-Assembled Reflectors & Dual-Configuration Spectrographs for Characterizing Exo-Earths
https://arxiv.org/abs/2510.02479

Habitable World Discovery and Characterization: Coronagraph Concept of Operations and Data Post-Processing
https://arxiv.org/abs/2510.02547

Exploring Warm Jupiter Migration Pathways with Eccentricities. I. Catalog of Uniform Keplerian Fits to Radial Velocities of 200 Warm Jupiters
https://arxiv.org/abs/2510.02564

Exploring Warm Jupiter Migration Pathways with Eccentricities II. Correlations with Host Star Properties and Orbital Separation
https://arxiv.org/abs/2510.02591

JCMT detection of HCN emission from 3I/ATLAS at 2.1 AU
https://arxiv.org/abs/2510.02817

Advancing the Concept Maturity Level of the Servicing Architecture for Habitable Worlds Observer
https://arxiv.org/abs/2510.03214

Blink and you’ll miss it – How Technological Acceleration Shrinks SETI’s Narrow Detection Window
https://www.sciencedirect.com/science/article/pii/S0094576525006538

Comparative Analysis of Polarization in Interstellar Comet 3I/ATLAS with Distant Solar System Comets
https://iopscience.iop.org/article/10.3847/2515-5172/ae0d91

Multi-band Spectral and Astrometric Characterization of the HIP 99770 b Planet with SCExAO/CHARIS and Gaia
https://iopscience.iop.org/article/10.3847/1538-3881/ae0195

Revisiting the Atmosphere of HD-149026 b: The Role of Stellar Abundances and Choice of Opacities in Exoplanet Atmosphere Modeling
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf1671/8272721