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 04, 2025 updates

An Informational–Entropic Approach to Exoplanet Characterization
https://www.mdpi.com/1099-4300/27/4/385

Rotating Synthetic Aperture Space Telescope Pointing Control Demonstration and Scalability Analysis
https://arc.aiaa.org/doi/10.2514/1.A36138

Secondary ionisation in hot atmospheres and interactions between planetary and stellar winds
https://www.aanda.org/articles/aa/full_html/2025/04/aa52559-24/aa52559-24.html

Giant Outer Transiting Exoplanet Mass (GOT ‘EM) Survey. V. Two Giant Planets in Kepler-511 but Only One Ran Away
https://iopscience.iop.org/article/10.3847/1538-3881/adbe2f

Photobombing for the Large Interferometer For Exoplanets (LIFE). A New Criterion for Target Confusion and Application to a Mid-infrared Rotating Nulling Interferometer
https://iopscience.iop.org/article/10.3847/1538-3881/adbe6c

The TESS–Keck Survey. XXIV. Outer Giants May Be More Prevalent in the Presence of Inner Small Planets
https://iopscience.iop.org/article/10.3847/1538-3881/adbbed

Eclipse Mapping with MIRI: 2D Map of HD 189733b from 8 μm JWST MIRI LRS Observations
https://iopscience.iop.org/article/10.3847/2041-8213/adc096

HD163296 and its giant planets: Creation of exo-comets, interstellar objects and transport of volatile material
https://www.researchgate.net/publication/390462606_HD163296_and_its_giant_planets_Creation_of_exo-comets_interstellar_objects_and_transport_of_volatile_material

Planet Earth in reflected and polarized light I. 3D radiative transfer simulations of realistic surface-atmosphere systems
https://arxiv.org/abs/2504.02048

An MHD Simulation of the Possible Modulations of Stellar CMEs Radio Observations by an Exoplanetary Magnetosphere
https://arxiv.org/abs/2504.02469

Helium escape signatures are generally strongest during younger ages but this age dependence is lost in the diversity of observed exoplanets
https://arxiv.org/abs/2504.02578

Cosmic ray ionisation of a post-impact early Earth atmosphere: Solar cosmic ray ionisation must be considered in origin-of-life scenarios
https://arxiv.org/abs/2504.02596

April 03, 2025 updates

Dependence of Planet populations on Stellar Mass and Metallicity: A Pebble Accretion-based Planet Population Synthesis
https://arxiv.org/abs/2504.00296

Asymmetry and Dynamical Constraints in 2-Limbs Retrieval of WASP-39 b Inferring from JWST Data
https://arxiv.org/abs/2504.00419

The climates and thermal emission spectra of prime nearby temperate rocky exoplanet targets
https://arxiv.org/abs/2504.00978

All systems go for PRIME telescope’s search for more planets beyond our solar system
https://www.nature.com/articles/d44148-025-00095-4

Modeling of Transit Absorptions of Warm Neptune WASP-69b in the Metastable Helium Line
https://link.springer.com/article/10.1134/S1063772925701525

Extending the Spherical Planetary Radiation Pressure Acceleration Model to Optical Solar Sails
https://arc.aiaa.org/doi/10.2514/1.G008940

Searching for hot water world candidates with CHEOPS – Refining the radii and analysing the internal structures and atmospheric lifetimes of TOI-238 b and TOI-1685 b
https://www.aanda.org/articles/aa/full_html/2025/04/aa53325-24/aa53325-24.html

Toward High-precision Mass Measurements of Two Sub-Neptunes in the K2-266 Planetary System Through Transit Timing
https://iopscience.iop.org/article/10.3847/1538-3881/adbe7a

Polarimetry of exoplanet-exomoon systems
https://www.researchgate.net/publication/390429276_Polarimetry_of_exoplanet-exomoon_systems

Transiting Exoplanets from Sharjah Astronomical Observatory (SAO-M47): The Exoplanet HAT-P-25 b Using L & V Filters
https://link.springer.com/chapter/10.1007/978-981-96-3276-3_1

The Receding Cosmic Shoreline of Mid-to-Late M Dwarfs: Measurements of Active Lifetimes Worsen Challenges for Atmosphere Retention by Rocky Exoplanets
https://arxiv.org/abs/2504.01182

Scattering blanketing effect of Earth’s proto-atmosphere: enhanced suppression of planetary radiation and magma ocean cooling
https://arxiv.org/abs/2504.01312

Updating the Ephemeris and Physical Properties of Five Long-period Transiting Exoplanets Using TESS and CHEOPS
https://arxiv.org/abs/2504.01768

April 02, 2025 updates

Transforming Martian Regolith with Black Soldier Flies, Hermetia illucens
https://www.tsijournals.com/articles/transforming-martian-regolith-with-black-soldier-flies-hermetia-illucens-16445.html

Dynamics Modeling and Analysis of a Vertical Landing Mechanism for Reusable Launch Vehicle
https://www.mdpi.com/2226-4310/12/4/280

Visualising Astronomy: Visualising Exoplanet Data
https://zenodo.org/records/14890695

Position and Time Determination Without Prior State Knowledge via Onboard Optical Observations of Delta Scuti Variable Stars
https://link.springer.com/article/10.1007/s40295-025-00485-8

Life and the Nature of Time – Investigating the Conceptual, Ethical and Cosmological Implications of Astrobiology
https://link.springer.com/book/9783031813573

Nuclear Thermal Propulsion Engine System Trades for Robotic Missions
https://arc.aiaa.org/doi/epdf/10.2514/1.A36308

Computational Study of Propulsive Performance of Frozen Nano-Aluminum and Water (ALICE) Mixtures
https://arc.aiaa.org/doi/10.2514/1.B39541

Computational Framework for Assessing Mission Outcomes with Humans and Robots
https://arc.aiaa.org/doi/10.2514/1.J063846

Elastic Mass Model Approach for Fuel Dynamics in Microgravity Environments
https://arc.aiaa.org/doi/full/10.2514/1.A36218

Ionizing radiation resilience: how metabolically active lichens endure exposure to the simulated Mars atmosphere
https://imafungus.pensoft.net/article/145477/

The CARMENES search for exoplanets around M dwarfs
https://www.aanda.org/articles/aa/full_html/2025/04/aa47510-23/aa47510-23.html

Diversity of exoplanets
https://www.sciencedirect.com/science/article/abs/pii/B978032399762100139X

Observation Simulation and Orbital Retrieval of the CHES Satellite
https://www.sciencedirect.com/science/article/pii/S0275106225000013

Terraforming Mars with Microalgae, Especially Diatoms
https://onlinelibrary.wiley.com/doi/10.1002/9781394174980.ch8

Kepler’s Platonic Model and Its Application to Exoplanetary Systems
https://arxiv.org/abs/2503.22793

April 01, 2025 updates

Probability of Planetary Life: The Venus Life Equation and Unknowns for Other Worlds
https://www.hou.usra.edu/meetings/lpsc2025/pdf/2374.pdf

Searching for hot water world candidates with CHEOPS – Refining the radii and analysing the internal structures and atmospheric lifetimes of TOI-238 b and TOI-1685 b
https://www.aanda.org/articles/aa/abs/2025/04/aa53325-24/aa53325-24.html

Solving for the 2D water snowline with hydrodynamic simulations – Emergence of the gas outflow, water cycle, and temperature plateau
https://www.aanda.org/articles/aa/full_html/2025/04/aa53036-24/aa53036-24.html

IV—Optimism in the Search for Extraterrestrial Life? A Philosophical Perspective
https://academic.oup.com/aristotelian/advance-article/doi/10.1093/arisoc/aoaf003/8102202

Nonlinear and Nonmonotonic Effect of Ocean Tidal Mixing on Exoplanet Climates and Habitability
https://iopscience.iop.org/article/10.3847/2041-8213/adbca3

Enhancing Celestial Imaging: High Dynamic Range with Neuromorphic Cameras
https://arxiv.org/abs/2503.22814

Habitability and Biosignatures
https://arxiv.org/abs/2503.22990

Water-Cooled (sub)-Neptunes Get Better Gas Mileage
https://arxiv.org/abs/2503.23020

BOWIE-ALIGN: Sub-stellar metallicity and carbon depletion in the aligned TrES-4b with JWST NIRSpec transmission spectroscopy
https://arxiv.org/abs/2503.24280

March 31, 2025 Updates

In Search of the Rule of Law: On Cybersecurity, Time Travel, and Interstellar Exploration
https://journals.librarypublishing.arizona.edu/azlawjet/article/id/8093/

Exploring the Alcubierre Warp Drive Ship
https://www.scirp.org/journal/paperinformation?paperid=141629

A joint effort to discover and characterize two resonant mini-Neptunes around TOI-1803 with TESS, HARPS-N, and CHEOPS
https://www.aanda.org/articles/aa/full_html/2025/03/aa51180-24/aa51180-24.html

Deflection angle around generic traversable wormhole solutions and energy conditions in extended teleparallel theory of gravity
https://www.sciencedirect.com/science/article/pii/S0550321325000914

Detectability of oxygen fugacity regimes in the magma ocean world 55 Cancri e at high spectral resolution
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf466/8099933

CETRA: A fast, sensitive exoplanet transit detection algorithm implemented for GPUs
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf512/8099934

Optimising Radial Velocity Detection Limits for Southern Habitable Worlds Observatory Targets
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/staf503/8099936

The Proxima Centauri Campaign — First Constraints On Millimeter Flare Rates from ALMA
https://arxiv.org/abs/2503.21890

Dust-void evolution driven by turbulent dust flux can induce runaway migration of Earth-mass planets
https://arxiv.org/abs/2503.21922

Measurement of Methane Line Broadening in Hot Hydrogen/Helium Atmospheres at λ = 1.60-1.63 μm for Substellar Object Spectroscopy
https://arxiv.org/abs/2503.22031

AT2021uey: A planetary microlensing event outside the Galactic bulge
https://arxiv.org/abs/2503.22331

Clouds and Hazes in GJ 1214b’s Metal-Rich Atmosphere
https://arxiv.org/abs/2503.22608

The atmospheric entry of cometary impactors
https://arxiv.org/abs/2503.22632

The radiative effects of photochemical hazes on the atmospheric circulation and phase curves of sub-Neptunes
https://arxiv.org/abs/2503.22642