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.

July 21, 2025 Updates

Quantum Aspects of Cosmobiology
https://www.researchgate.net/publication/393715918_Quantum_Aspects_of_Cosmobiology

Interstellar visitor might be the oldest comet ever seen
https://www.sciencedirect.com/science/article/abs/pii/S0262407925011522

Connecting the Small Solar Wind Transients Observed Remotely to Their In Situ Measurement near 1 au
https://iopscience.iop.org/article/10.3847/1538-4357/ade1d7

Interstellar comet 3I/ATLAS: discovery and physical description
https://academic.oup.com/mnrasl/advance-article/doi/10.1093/mnrasl/slaf078/8206197

Comprehensive Analysis of CM Draconis: Eclipse Timing Variations Driven by Either a Third Body or Stellar Magnetic Activity
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf1166/8205645

Atmospheric Mining in the Outer Solar System: In-Situ Resource Utilization, Factories, and Moon Mining Parametric Analyses
https://arc.aiaa.org/doi/10.2514/6.2025-4078

Fifteen Years to the Interstellar Medium with An Enhanced NASA Space Launch System Launcher
https://arc.aiaa.org/doi/10.2514/6.2025-4001

NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
https://arxiv.org/abs/2507.13409

The SPACE Program I: The featureless spectrum of HD 86226 c challenges sub-Neptune atmosphere trends
https://arxiv.org/abs/2507.13439

Testing the Origin of Hot Jupiters with Ariel
https://arxiv.org/abs/2507.13446

Updated Masses for the Gas Giants in the Eight-Planet Kepler-90 System Via Transit-Timing Variation and Radial Velocity Observations
https://arxiv.org/abs/2507.13588

Inflated hot Jupiters: inferring average atmospheric velocity via Ohmic models coupled with internal dynamo evolution
https://arxiv.org/abs/2507.13991

July 18, 2025 updates

5094 – Composition of an Interstellar Object – Unique Insights into Protoplanetary Disk Midplane Chemistry
https://www.stsci.edu/jwst-program-info/download/jwst/pdf/5094/

Is ozone a reliable proxy for molecular oxygen? – II. The impact of N2O on the O2-O3 relationship for Earth-like atmospheres
https://www.aanda.org/articles/aa/full_html/2025/07/aa55289-25/aa55289-25.html

Assessing interstellar comet 3I/ATLAS with the 10.4 m Gran Telescopio Canarias and the Two-meter Twin Telescope
https://arxiv.org/abs/2507.12922

Interplay between tidal flows and magnetic fields in nonlinear simulations of stellar and planetary convective envelopes
https://arxiv.org/abs/2501.08722

A water-rich interior in the temperate sub-Neptune K2-18 b revealed by JWST
https://arxiv.org/abs/2507.12622

How does the chemical composition of solids influence the formation of planetesimals?
https://arxiv.org/abs/2507.12864

July 17, 2025 updates

Technological Advancement and the Wisdom Gap: A Solution to the Fermi Paradox
https://www.academia.edu/129287971/Technological_Advancement_and_the_Wisdom_Gap_A_Solution_to_the_Fermi_Paradox_Vs_202506011500_

Relativistic Modelling for Transit of a Photon Kinetic Energy Sail
https://arc.aiaa.org/doi/10.2514/6.2025-4068

A Proposal for Genetically Informed Crew Selection, Role Assignment, and Breeding Programs for Long-Duration Space Settlements
https://arc.aiaa.org/doi/10.2514/6.2025-4087

A Landmark in Space – Spacetime Zero
https://arc.aiaa.org/doi/10.2514/6.2025-4093

Gemini North Observes Comet 3I/ATLAS
https://noirlab.edu/public/news/noirlab2522/

Reduced or westward hotspot offset explained by dynamo action in atmospheres of ultrahot Jupiters
https://www.aanda.org/articles/aa/full_html/2025/07/aa53695-25/aa53695-25.html

Planetary edge trends – I. The inner edge – stellar mass correlation
https://www.aanda.org/articles/aa/full_html/2025/07/aa53671-25/aa53671-25.html

A Short History of (Orbital) Decay: Roman’s Prospects for Detecting Dying Planets
https://iopscience.iop.org/article/10.3847/1538-3881/ade3d9

3I/ATLAS is Smaller or Rarer than It Looks
https://iopscience.iop.org/article/10.3847/2515-5172/adee06

Is the Interstellar Object 3I/ATLAS Alien Technology?
https://arxiv.org/abs/2507.12213

Near-Discovery Observations of Interstellar Comet 3I/ATLAS with the NASA Infrared Telescope Facility
https://arxiv.org/abs/2507.12234

Can Moons Exist around the Habitable-zone Planet K2-18b?
https://arxiv.org/abs/2507.11594

SETI Post-Detection Futures: Directions for Technosignature Research and Readiness
https://arxiv.org/abs/2507.11587

Volatile enrichment in low-mass planets: Signatures of past planetary disruption?
https://arxiv.org/abs/2507.11693

ExoGemS The Effect of Offsets from True Orbital Parameters on Exoplanet High-Resolution Transmission Spectra
https://arxiv.org/abs/2507.11708

Palomar and Apache Point Spectrophotometry of Interstellar Comet 3I/ATLAS
https://arxiv.org/abs/2507.11720

July 16, 2025 updates

Solar Energy as a Cornerstone for Space Colonization: Advanced Technologies and Futuristic Paradigms
https://scienceletters.researchfloor.org/solar-energy-as-a-cornerstone-for-space-colonization-advanced-technologies-and-futuristic-paradigms/

Data challenges and prospects of high-resolution spectroscopy of exoplanets
https://link.springer.com/article/10.1038/s42254-025-00839-z

A spectroscopist’s view of the evolving story of exoplanet K2-18 b
https://link.springer.com/article/10.1038/s42254-025-00856-y

The Kinematic Age of 3I/ATLAS and its Implications for Early Planet Formation
https://arxiv.org/abs/2507.08111

Leaky Dust Traps in Planet-embedded Protoplanetary Disks
https://iopscience.iop.org/article/10.3847/1538-4357/addd1f

Effect of Galactic Chemical Evolution on Exoplanet Properties
https://arxiv.org/abs/2507.10942

On Hot Jupiters and Stellar Clustering: The Role of Host Star Demographics
https://arxiv.org/abs/2507.11225

The model is the message: Lightweight convolutional autoencoders applied to noisy imaging data for planetary science and astrobiology
https://arxiv.org/abs/2507.11400

A Transiting Giant on a 7.7-Year Orbit Revealed by TTVs in the TOI-201 System
https://arxiv.org/abs/2507.11504

A New Method for the Discovery of the Distant Exoplanets II: Question of Signal-to-Noise Ratio
https://arxiv.org/abs/2507.10764

The visibility of the Ōtautahi-Oxford interstellar object population model in LSST
https://arxiv.org/abs/2502.16741

July 15, 2025 updates

Exoplanet Atmospheric Escape Observations with the Habitable Worlds Observatory
https://arxiv.org/abs/2507.07124

A solar C/O ratio in planet-forming gas at 1 au in a highly irradiated disk
https://www.nature.com/articles/s41550-025-02596-6

Exoplanets
https://link.springer.com/article/10.1007/s12036-025-10051-1

On the epistemic value of atmospheric retrieval models in exoplanetary science
https://link.springer.com/article/10.1007/s11229-025-05149-6

Estimate of Core-Powered Mass-Loss of Primary Atmosphere of the Mini-Neptune (Ocean Planet) HD 207496b
https://link.springer.com/article/10.1134/S0038094624602172

A young gas giant and hidden substructures in a protoplanetary disk
https://www.nature.com/articles/s41550-025-02576-w

An Earth-Sized Planet in a 5.4h Orbit Around a Nearby K dwarf
https://arxiv.org/abs/2507.08464

Hundreds of TESS Exoplanets Might Be Larger than We Thought
https://iopscience.iop.org/article/10.3847/2041-8213/ade794

Fluid dynamics of a liquid mirror space telescope
https://arxiv.org/abs/2507.02812

The TOI-2427 system: Two close-in planets orbiting a late K-dwarf star
https://www.aanda.org/articles/aa/full_html/2025/07/aa52620-24/aa52620-24.html

Non-local thermodynamical equilibrium atmospheric modelling of the ultra-hot Jupiter WASP-178b and comparison with UV and optical observations
https://www.aanda.org/articles/aa/full_html/2025/07/aa54240-25/aa54240-25.html

Non-transiting exoplanets as a means of understanding star–planet interactions in close-in systems
https://www.aanda.org/articles/aa/full_html/2025/07/aa53791-25/aa53791-25.html

Placing the Solar System in its Astrophysical Context
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf1149/8202815

The Roasting Marshmallows Program with IGRINS on Gemini South III: Seeing deeper into the metal depleted atmosphere of a gas-giant on the cusp of the hot to ultra-hot Jupiter transition
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf1150/8199929

Rethinking Habitability Using Biogenic Precursors: Formaldehyde in Millimeter Molecular Clouds of the Inner Galaxy
https://iopscience.iop.org/article/10.3847/1538-4357/add691

Comparing Grid Model Fitting Methodologies for Low-temperature Atmospheres: Markov Chain Monte Carlo versus Random Forest Retrieval
https://iopscience.iop.org/article/10.3847/1538-4357/addd06

Streams and Bubbles: Tidal Shaping of Hydrodynamic Planetary Outflows
https://iopscience.iop.org/article/10.3847/1538-4357/ade0b7

Orbital Decay of the Ultra-hot Jupiter TOI-2109b: Tidal Constraints and Transit-timing Analysis
https://iopscience.iop.org/article/10.3847/1538-4357/ade057

Asteroseismic Characterization of 142 Solar-like Oscillators Hosting Confirmed Exoplanets
https://iopscience.iop.org/article/10.3847/1538-4365/ade23f

Detailed Architecture of the L 98-59 System and Confirmation of a Fifth Planet in the Habitable Zone
https://arxiv.org/abs/2507.09343

From global climate models (GCMs) to exoplanet spectra with the Global Emission Spectra (GlobES)
https://www.sciencedirect.com/science/article/abs/pii/S2213133725000551

The New Generation Planetary Population Synthesis (NGPPS) VIII. Impact of host star metallicity on planet occurrence rates, orbital periods, eccentricities, and radius valley morphology
https://arxiv.org/abs/2507.09874

Galactic Trajectories of Interstellar Objects 1I/’Oumuamua, 2I/Borisov, and 3I/Atlas
https://arxiv.org/abs/2408.02739

A metal-poor atmosphere with a hot interior for a young sub-Neptune progenitor: JWST/NIRSpec transmission spectrum of V1298 Tau b
https://arxiv.org/abs/2507.08837

Free Floating or Merely Detached?
https://arxiv.org/abs/2507.08968

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