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

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June 06, 2024 updates

Planet-sized laboratories offer cosmological insights

TESS Giants Transiting Giants. IV. A low-density hot Neptune orbiting a red giant star

Reconnaissance of potentially habitable worlds with Webb

Host-star Properties of Hot, Warm, and Cold Jupiters in the Solar Neighborhood from Gaia Data Release 3: Clues to Formation Pathways

Simulating the Escaping Atmosphere of GJ 436 b with Two-fluid Magnetohydrodynamic Models

Synechococcus sp. PCC7335 responses to far-red enriched spectra and anoxic/microoxic atmospheres: potential for astrobiotechnological applications

Novel Atmospheric Dynamics Shape Inner Edge of Habitable Zone Around White Dwarfs

BEBOP V. Homogeneous Stellar Analysis of Potential Circumbinary Planet Hosts

Simultaneous retrieval of orbital phase resolved JWST/MIRI emission spectra of the hot Jupiter WASP-43b: evidence of water, ammonia and carbon monoxide

June 05, 2024 updates

Congressional language alters plans for NASA’s Habitable Worlds Observatory

Recipes for Forming a Carbon–Rich Giant Planet

The GAPS Programme at TNG – LV. Multiple molecular species in the atmosphere of HAT-P-11 b and review of the HAT-P-11 planetary system

Two-dimensional Eclipse Mapping of the Hot-Jupiter WASP-43b with JWST MIRI/LRS

Ethical and Practical Considerations for Populating a Distant Exoplanet: AI and Robotic Support vs. AI and Humanity

Debris Disks can Contaminate Mid-Infrared Exoplanet Spectra: Evidence for a Circumstellar Debris Disk around Exoplanet Host WASP-39

Use the 4S (Signal-Safe Speckle Subtraction): Explainable Machine Learning reveals the Giant Exoplanet AF Lep b in High-Contrast Imaging Data from 2011

CHEOPS in-flight performance: A comprehensive look at the first 3.5 years of operations

Chemical mapping of temperate sub-Neptune atmospheres: Constraining the deep-interior H2O/H2 using the atmospheric CO2/CH4

Longitudinal Filtering, Sponge Layers, and Equatorial Jet Formation in a General Circulation Model of Gaseous Exoplanets

June 04, 2024 updates

Adaptation of Photoautotrophs in Extraterrestrial Environments: Responses and Mechanisms of Survival

TOI-1685 b is a Hot Rocky Super-Earth: Updates to the Stellar and Planet Parameters of a Popular JWST Cycle 2 Target

The GAPS Programme at TNG – LIV. A He I survey of close-in giant planets hosted by M-K dwarf stars with GIANO-B

TASTE – V. A new ground-based investigation of orbital decay in the ultra-hot Jupiter WASP-12b

Interstellar meteors from the tidal disruption of rocky planets on eccentric orbits around M dwarfs

The GAPS Programme at TNG – LV. Multiple molecular species in the atmosphere of HAT-P-11 b and review of the HAT-P-11 planetary system

Nonbiological Hybrids for Interstellar Travel: Melding Human Consciousness with Artificial Intelligence

Using A New Semi-Empirical Planetary Temperature Model to Define the Habitable Zone of Earth-Like Planets: The Critical Role of Atmospheric Pressure

Stellar Characterization and Chemical Abundances of Exoplanet Hosting M dwarfs from APOGEE Spectra: Future JWST Targets

Are WASP-107-like Systems Consistent with High-eccentricity Migration?

Early-time small-scale structures in hot-exoplanet atmosphere simulations

June 03, 2024 updates

Recipes for forming a carbon–rich giant planet

Internal Nuclear Propulsion System for Future Space Applications

HST SHEL: Enabling Comparative Exoplanetology with HST/STIS

Identifying and Fitting Eclipse Maps of Exoplanets with Cross-Validation

Shallower radius valley around low-mass hosts: Evidence for icy planets, collisions or high-energy radiation scatter

Direct Imaging Detection of the Protoplanet AB Aur b at Wavelengths Covering Paβ

The Abundance of Chlorine in the Atmosphere of HD 87240

The GAPS Programme at TNG – LIV. A He I survey of close-in giant planets hosted by M-K dwarf stars with GIANO-B

Thermal structure of circumbinary discs: Circumbinary planets should be icy, not rocky

Examining the detectability of ringing on highly eccentric exoplanets

Repeating X-ray bursts: Interaction between a neutron star and clumps partially disrupted from a planet

May 31, 2024 updates

Drosophila parasitoids go to space: Unexpected effects of spaceflight on hosts and their parasitoids

TASTE – V. A new ground-based investigation of orbital decay in the ultra-hot Jupiter WASP-12b

How do wavelength correlations affect transmission spectra? Application of a new fast and flexible 2D Gaussian process framework to transiting exoplanet spectroscopy

General Post-Newtonian Orbital Effects

A Unified Treatment of Kepler Occurrence to Trace Planet Evolution. II. The Radius Cliff Formed by Atmospheric Escape

Mass–Radius Relationships and Contraction of Condensed Planets by Cooling or Despinning

Lethal surface ozone concentrations are possible on habitable zone exoplanets

Enhancing Exoplanet Ephemerides by Leveraging Professional and Citizen Science Data: A Test Case with WASP-77A b

Paths to Robust Exoplanet Science Yield Margin for the Habitable Worlds Observatory

Bioverse: GMT and ELT Direct Imaging and High-Resolution Spectroscopy Assessment – Surveying Exo-Earth O2 and Testing the Habitable Zone Oxygen Hypothesis

Motivating Emissions from Positive Energy Warp Bubbles

Significant mutual inclinations between the stellar spin and the orbits of both planets in the HAT-P-11 system

Planet-Planet Scattering and ZLK Migration — The Dynamical History of HAT-P-11

Recipes for forming a carbon-rich giant planet

A Larger Sample Confirms Small Planets Around Hot Stars Are Misaligned

HIP 41378 observed by CHEOPS: Where is planet d?

Fleeting but not Forgotten: the Imprint of Escaping Hydrogen Atmospheres on Super-Earth Interiors