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.

April 29, 2025 updates

Perpetual Push Against Spacetime [Locomotive Constraints of Relativistic Space Travel]
https://www.academia.edu/128047008/Perpetual_Push_Against_Spacetime_Locomotive_Constraints_of_Relativistic_Space_Travel_

Detection of Exoplanets in Transit Light Curves with Conditional Flow Matching and XGBoost
https://www.mdpi.com/2079-9292/14/9/1738

The cosmochemistry of planetary systems
https://link.springer.com/article/10.1038/s41570-025-00711-9

Age dependence of the occurrence and architecture of ultra-short-period planet systems
https://www.nature.com/articles/s41550-025-02539-1

Near-circular orbits for planets with Earth-like sizes and instellations around M and K dwarf stars
https://www.nature.com/articles/s41550-025-02532-8

An astronomer explains the extraordinary evidence scientists need to claim discoveries like extraterrestrial life
https://phys.org/news/2025-04-astronomer-extraordinary-evidence-scientists-discoveries.html

In-depth characterization of the Kepler-10 three-planet system with HARPS-N radial velocities and Kepler transit timing variations
https://www.aanda.org/articles/aa/full_html/2025/04/aa53026-24/aa53026-24.html

Closeby Habitable Exoplanet Survey (CHES). III. Retrieval of Planetary Masses in Binaries Using the N-body Model with Radial Velocity and Astrometry Synergy
https://iopscience.iop.org/article/10.3847/1538-4357/adc444

Biases from Missing a Small Planet in High Multiplicity Systems
https://iopscience.iop.org/article/10.3847/2041-8213/adcba1

Peeking under the clouds: Is exoplanet imaging with the solar gravitational lens feasible?
https://arxiv.org/abs/2504.18630

Lightning activity on a tidally locked terrestrial exoplanet in storm-resolving simulations for a range of surface pressures
https://arxiv.org/abs/2504.19883

A Search for Exoplanet Candidates in TESS 2-min Light Curves using Joint Bayesian Detection
https://arxiv.org/abs/2504.18706

On the similarities between the Trojan Wave Packets as a Single Electron Life and the Planet in the habitable zone
https://www.researchgate.net/publication/391119528_On_the_similarities_between_the_Trojan_Wave_Packets_as_a_Single_Electron_Life_and_the_Planet_in_the_habitable_zone

A Next-Generation Exoplanet Atmospheric Retrieval Framework for Transmission Spectroscopy (NEXOTRANS): Comparative Characterization for WASP-39 b Using JWST NIRISS, NIRSpec PRISM, and MIRI Observations
https://arxiv.org/abs/2504.18815

Thermodynamic constraints on the citric acid cycle and related reactions in ocean world interiors
https://arxiv.org/abs/2504.19369

The Cosmic Shoreline Revisited: A Metric for Atmospheric Retention Informed by Hydrodynamic Escape
https://arxiv.org/abs/2504.19872

April 28, 2025 Updates

Transforming Electromagnetic Tensor to Weyl Tensor for Curvature Drive
https://www.scirp.org/journal/paperinformation?paperid=142132

Modeling Gravitational Lensing: Analyzing Light Deflection Through a Curved Atmospheric Layer
https://www.researchgate.net/publication/390992723_Modeling_Gravitational_Lensing_Analyzing_Light_Deflection_Through_a_Curved_Atmospheric_Layer

Escaping Gravity Without Fuel
https://avi-loeb.medium.com/escaping-gravity-without-fuel-bb4a22633aed

Computational modelling of water-fuelled Hall Effect Thrusters
https://link.springer.com/article/10.1007/s44205-025-00124-2

The Spinor Universe: A Topological Model of Matter-Antimatter Asymmetry and Temporal Duality
https://www.preprints.org/manuscript/202504.2118/v1

Strongest evidence yet of alien life
https://www.sciencedirect.com/science/article/abs/pii/S0262407925006505

A transiting rocky super-Earth and a non-transiting sub-Neptune orbiting the M dwarf TOI-771
https://arxiv.org/abs/2504.18223

Characterizing the Impact of Alfvén Wave Forcing in Interplanetary Space on the Distribution of near-Earth Solar Wind Speeds
https://arxiv.org/abs/2504.18350

Life on the Edge: Using Planetary Context to Enhance Biosignatures and Avoid False Positives
https://arxiv.org/abs/2504.18431

April 25, 2025 updates

Aeronomy of the upper atmosphere of KELT-9 b
https://www.aanda.org/articles/aa/full_html/2025/04/aa53309-24/aa53309-24.html

Thermal Emission and Confirmation of the Frigid White Dwarf Exoplanet WD 1856+534b
https://arxiv.org/abs/2504.16982

On the similarities between the Trojan Wave Packets and the Planet in the habitable zone
https://www.researchgate.net/publication/391119528_On_the_similarities_between_the_Trojan_Wave_Packets_and_the_Planet_in_the_habitable_zone

The tidal heating of the exoplanet 55 Cnc e. The role of the orbital eccentricity
https://arxiv.org/abs/2504.17585

April 24, 2025 updates

Pentagonal photonic crystal mirrors
https://repository.tudelft.nl/record/uuid:82f0e4dd-705d-435d-a9f6-231ffaf7b9e9

Framing Infinity: Intelligence Frame Theory
https://philarchive.org/archive/SHEIFT

Applied Astrobiology: An Integrated Approach to the Future of Life in Space’
https://liebertpub.com/doi/10.1089/ast.2024.0156

Detection of Exoplanets in Transit Light Curves with Conditional Flow Matching and XGBoost
https://www.mdpi.com/2079-9292/14/9/1738

PEPSI Investigation, Retrieval, and Atlas of Numerous Giant Atmospheres (PIRANGA). I. The Ubiquity of Fe i Emission and Inversions in Ultrahot Jupiter Atmospheres
https://iopscience.iop.org/article/10.3847/1538-3881/adc411

Exploring the Neptunian Desert: Insights from a Homogeneous Planetary Sample
https://arxiv.org/abs/2504.16164

Uncertainties in the Inference of Internal Structure: The Case of TRAPPIST-1 f
https://arxiv.org/abs/2504.16201

MHD Simulations Preliminarily Predict The Habitability and Radio Emission of TRAPPIST-1e
https://arxiv.org/abs/2504.16662

Thermal Evolution and Mass Loss on Short-Period, Low-Mass Planets During FU Orionis Outbursts
https://arxiv.org/abs/2504.16772

April 23, 2025 updates

The enigmatic magnetic field of the planet hosting Herbig Ae/Be star HD 169142
https://www.aanda.org/articles/aa/full_html/2025/04/aa53225-24/aa53225-24.html

Breaking long-period resonance chains with stellar flybys
https://www.aanda.org/articles/aa/full_html/2025/04/aa53710-25/aa53710-25.html

Stringent Limits on H+3 Emission from the Hot Jupiters WASP-80b and WASP-69b
https://arxiv.org/abs/2504.15393

Retrieving day- and nightside atmospheric properties of the ultra-hot Jupiter TOI-2109b. Detection of Fe and CO emission lines and evidence for inefficient heat transport
https://arxiv.org/abs/2504.15757

Are there Spectral Features in the MIRI/LRS Transmission Spectrum of K2-18b?
https://arxiv.org/abs/2504.15916

Plasma Mechanism of Radio Emission Generation at the Bow Shock of the Exoplanet HD 189733b
https://arxiv.org/abs/2504.15787