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.

May 8, 2026 Updates

Life is But a Stream: The Distribution of Planetary Systems Along Stellar Streams and their Properties
https://arxiv.org/abs/2605.05293

Resonant Hamiltonian Dynamics in the CR3BP: Bistability and Stochastic Resonance in Binary Planetary Systems
https://arxiv.org/abs/2605.05470

Results of ten years of UCLA SETI searches with the Green Bank Telescope
https://arxiv.org/abs/2605.05408

Phase-Space Crystallization in Galactic Globular Clusters: A Gaia-Based Metric and Implications for Technosignature Searches
https://arxiv.org/abs/2605.06072

A preliminary exploration of the effects of baseline length for the LIFE space mission
https://arxiv.org/abs/2605.06648

A new look into the atmospheric composition of WASP-39 b
https://arxiv.org/abs/2504.07823

A Physical Model for the Ice Coma of the Interstellar, Hyperactive Comet 3I/ATLAS
https://arxiv.org/abs/2510.18157

Beyond the α model: scaling the wind-driven accretion rate in protoplanetary disks using systematic non-ideal magnetohydrodynamical simulations
https://arxiv.org/abs/2605.04456

A high-fidelity simulator for evaluation of hemodynamic response during cardiopulmonary resuscitation in hypogravity environments
https://www.nature.com/articles/s41526-026-00577-1

JWST Unveils a High Mean Molecular Weight Atmosphere for Mini-Neptune TOI-1130 b: Evidence for Formation Beyond the Water Ice Line
https://iopscience.iop.org/article/10.3847/2041-8213/ae5f8b

May 7, 2026 Updates

Algorithmic bottlenecks in evolution: Genetic code, symbolic language, and the Great Filter hypothesis
https://arxiv.org/abs/2605.04498

Hypergravity exposure leads to persistent effects on geotaxis and activity in Drosophila melanogaster
https://journals.biologists.com/jeb/article/229/8/jeb251327/371426/Hypergravity-exposure-leads-to-persistent-effects

Advancements in soft robotics: materials, actuation, modeling, and applications
https://iopscience.iop.org/article/10.1088/2053-1591/ae5d8d

Impact of Climate States and Seasons on Future Exo-Earth Observations
https://arxiv.org/abs/2605.04187

Smaller Than Earth Habitability Model (STEHM): The Lower Size Limit for Atmosphere Retention in the Habitable Zone
https://arxiv.org/abs/2605.00170

Searching for GEMS: Three warm Saturns and a super-Jupiter orbiting four early M-dwarfs
https://arxiv.org/abs/2604.27064

The Influences of Hydrogen-Silicate-Iron Miscibility on the Demographics of Sub-Neptunes and Super-Earths
https://arxiv.org/abs/2604.28135

Horizontal transport as a source of disequilibrium chemistry on the nightside of a hot exoplanet
https://arxiv.org/abs/2605.04936

The dark and featureless surface of rocky exoplanet LHS 3844 b from JWST mid-infrared spectroscopy
https://arxiv.org/abs/2605.00100

Modeling Volcanic Plume Heights Across Exoplanet Atmospheres: Insights from TRAPPIST-1
https://arxiv.org/abs/2605.04423

The NUV transit of XO-3 b
https://arxiv.org/abs/2605.05068

The Transit Timing and Transmission Spectrum of Hot Jupiter WASP-43 b from a Decade of Multiband Transit follow-up Observations
https://iopscience.iop.org/article/10.3847/1538-3881/ae5b78

Unraveling the Mystery of the Peculiar and Young Hot Jupiter CoRoT-2b. I. H2O and CO Detection from Dayside Observations with Gemini-S/IGRINS
https://iopscience.iop.org/article/10.3847/1538-3881/ae5ba6

The Days Drag On on WASP-121 b: Interpreting its NIRISS Spectroscopic Phase Curve with General Circulation Models
https://arxiv.org/abs/2605.01589

TOI-159 b: an eccentric hot-Jupiter planet around a young, pulsating γ Doradus star
https://arxiv.org/abs/2605.04149

The ESO SupJup Survey. X. A carbon isotope contrast in the young ROXs 12 system
https://arxiv.org/abs/2605.03508

Asteroseismic modelling of main-sequence solar-like stars and Kepler exoplanet host stars with the FICO procedure I. Catalogue of fundamental stellar properties
https://arxiv.org/abs/2604.27842

Thermal instability and rocky planetesimal formation in the inner regions of protoplanetary disks
https://arxiv.org/abs/2604.27581

JWST/MIRI Hydrocarbon and Water Absorption in the Wind of a Young Disk: Signatures of Pebble Drift and Carbon Grain Sublimation
https://iopscience.iop.org/article/10.3847/1538-4357/ae5e6a

May 6, 2026 Updates

Outstanding Questions in Giant Planet Theory
https://arxiv.org/abs/2605.02818

The Rocky Planet Picture Show: Implementation of Surface Reflection and Emission in POSEIDON with Application to and Interpretation of JWST Data
https://arxiv.org/abs/2605.00700

PALEOS: Multiphase Equations of State and Mass-Radius Relations for Exoplanet Interiors
https://arxiv.org/abs/2605.03741

TOI-4552 b: A new ultra-short-period rocky world revealed by NIRPS and TESS
https://www.aanda.org/articles/aa/full_html/2026/05/aa58749-25/aa58749-25.html

Characterizing the bolometric-photoevaporative transition in young sub-Neptunes with radiation-hydrodynamic simulations
https://arxiv.org/abs/2605.02766

A break in planet occurrence near the pebble isolation mass should be observable by the Roman microlensing survey
https://www.aanda.org/articles/aa/full_html/2026/05/aa59089-26/aa59089-26.html

On the Dust Substructures Triggered by Two Super-Earths Migrating in Low-viscosity Disks
https://arxiv.org/abs/2605.01955

Synergistic Effects of Ocean Salinity and Planetary Obliquity Enhance Habitability of Cold Exo-Earths
https://arxiv.org/abs/2605.03994

High CO/H2 ratio supports an exocometary origin for a CO-rich debris disc
https://www.aanda.org/articles/aa/full_html/2026/05/aa57969-25/aa57969-25.html

Tentative detection of the glycine isomer glycolamide in a hot molecular core
https://www.aanda.org/articles/aa/full_html/2026/05/aa59347-26/aa59347-26.html

Modeling the UV-photon irradiation of CS-bearing ices in the laboratory with the pyRate gas-grain astrochemical code. New insights into the missing sulfur problem
https://arxiv.org/abs/2605.03725

Interpretability of deep-learning methods applied to large-scale structure surveys
https://www.aanda.org/articles/aa/full_html/2026/05/aa53963-25/aa53963-25.html

A public dataset of Ariel simulated observations for developing exoplanetary atmosphere data reduction pipelines
https://arxiv.org/abs/2605.03719

Mitigating effects of telescope jitter through differentiable forward-modeling
https://arxiv.org/abs/2605.03445

May 5, 2026 Updates

Detection of 27 candidate circumbinary planets through apsidal precession of eclipsing binaries observed by TESS
https://academic.oup.com/mnras/article/548/3/stag515/8524019

Carbon dioxide concentration alters cyanobacterial carboxysome encapsulation and redox state in Synechococcus sp. PCC 7002
https://pubmed.ncbi.nlm.nih.gov/42082731/

The macromolecules and lipid biomarkers as seen in the archean white mfolozi banded iron formation (BIF): Their biogenicity and possible implications for mars
https://pubmed.ncbi.nlm.nih.gov/42056741/

April 30, 2026 Updates

Effects of carbon dioxide on physical and cognitive performance in a simulated spacesuit contingency scenario
https://www.nature.com/articles/s41526-026-00589-x

Survival of NASA-cleanroom microbial isolates under simulated space and Martian conditions
https://journals.asm.org/doi/10.1128/aem.02065-25

Extreme Arabian environments and their microbiomes: new frontiers for astrobiology and biosignature discovery
https://link.springer.com/article/10.1007/s00792-026-01426-5

The effect of spectral resolution on biosignature detection via reflected light observations of the Earth through time
https://arxiv.org/abs/2604.26925

A TESS Test of the Hybrid Ring Strategy for Technosignature Searches Using GRB 221009A
https://arxiv.org/abs/2604.06807

GRAPH readout ASIC for large aperture, high resolution single photon imaging detectors designated for space applications
https://iopscience.iop.org/article/10.1088/1748-0221/21/04/C04086

Precision Astrometry: A Stereoscopic Twin Imaging System (PASTIS)
https://iopscience.iop.org/article/10.1088/1538-3873/ae5a03

Charge diffusion and modulation transfer function in a Nancy Grace Roman Space Telescope detector
https://arxiv.org/abs/2604.26114

Blinded Mock Data Challenge: Is the Spectral Siren Technique Robust for Measuring the Hubble Constant?
https://arxiv.org/abs/2604.26273

Oxygen and nitrogen isotopologues on cold COCONUTS-2b observed with MIRI/MRS
https://arxiv.org/abs/2604.26850

The Solubility of N2 in High-pressure Ice and Its Consequent Outgassing Limitations in Water Worlds
https://iopscience.iop.org/article/10.3847/1538-4357/ae5820

XUE. Modeling MIR Molecular Gas Tracers of Truncation in Highly Irradiated Planet-forming Disks
https://iopscience.iop.org/article/10.3847/1538-4357/ae5b83

A very eccentric brown dwarf coplanar to a warm Jupiter and a hot super Earth
https://arxiv.org/abs/2604.23926

The tale of the 3 planets: 3D cloud feedback enhances the spectral diversity of warm Jupiters
https://arxiv.org/abs/2604.26911

Supersolar Metallicity and Tentative Evidence for Photochemistry on WASP-96 b from JWST and Ground-based VLT Transmission Spectroscopy
https://iopscience.iop.org/article/10.3847/1538-3881/ae5b9f

RV and TTV Measurements of Two Transiting Long-Period Giants around TOI-4600
https://arxiv.org/abs/2604.26426