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

You can now search our database of interstellar updates and find items of interest to you.

June 19, 2024 updates

High contrast at short separation with VLTI/GRAVITY: Bringing Gaia companions to light

A new approach for the numerical calculation of diffraction patterns using starshades

HIP 65426 is a High-frequency Delta Scuti Pulsator in Plausible Spin–Orbit Alignment with its Directly Imaged Exoplanet

The Metallicity and Carbon-to-oxygen Ratio of the Ultrahot Jupiter WASP-76b from Gemini-S/IGRINS

Retrieved Atmospheres and Inferred Surface Properties for Terrestrial Exoplanets Using Transmission and Reflected-light Spectroscopy

C/O Ratios and the formation of wide separation exoplanets

Ariel stellar characterisation II. Chemical abundances of carbon, nitrogen, and oxygen for 181 planet-host FGK dwarf stars

A new lever on exoplanetary B fields: measuring heavy ion velocities

Windows Into Other Worlds: Pitfalls in the physical interpretation of exoplanet atmospheric spectroscopy

The Hycean Paradigm in the Search for Life Elsewhere

The Aligned Orbit of a Hot Jupiter around the M Dwarf TOI-4201

Low-mass planets falling into gaps with cyclonic vortices

The Distribution of Planet Radius in Kepler Multiplanet Systems Depends on Gap Complexity

A Comparative Simulation Study of Hot and Ultra-hot Jupiter Atmospheres using Different Ground-based High-resolution Spectrographs with Cross-correlation Spectroscopy

June 18, 2024 updates

A qualitative assessment of limits of active flight in low density atmospheres

Disproving the High-eccentricity Planet HD 220773b

Characterizing planetary systems with SPIRou: a temperate sub-Neptune exoplanet orbiting the nearby fully-convective star GJ 1289 and a candidate around GJ 3378

Four microlensing giant planets detected through signals produced by minor-image perturbations

Predicting Exoplanetary Features with a Residual Model for Uniform and Gaussian Distributions

PLATO’s signal and noise budget

Detecting Planetary Oblateness in the Era of JWST: A Case Study of Kepler-167e

June 17, 2024 updates

Relativistic damping of laser-beam-driven light sails

Earth’s atmosphere protects the biosphere from nearby supernovae

The AstraLux-TESS high spatial resolution imaging survey – Search for stellar companions of 215 planet candidates from TESS

A Close Binary Lens Revealed by the Microlensing Event Gaia20bof

The Limited Role of the Streaming Instability during Moon and Exomoon Formation

A Comprehensive Literature Study on Technology Pertaining to Interstellar Travel and the Current Human Standing

Seismic and acoustic signals from the 2014 ‘Interstellar Meteor’

Evidence for Morning-to-Evening Limb Asymmetry on the Cool Low-Density Exoplanet WASP-107b

JWST/NIRCam 4-5 μm Imaging of the Giant Planet AF Lep b

HD 21520 b: a warm sub-Neptune transiting a bright G dwarf

Phase-resolving the absorption signatures of water and carbon monoxide in the atmosphere of the ultra-hot Jupiter WASP-121b with GEMINI-S/IGRINS

The Impact of Magnetic Fields on the Decoupling of H and H+ in the Escaping Atmosphere of GJ436

Searching for Jupiter and Saturn analog planets with potential icy exomoons — a Panspermia perspective

GASTLI: An open-source coupled interior-atmosphere model to unveil gas giant composition

Latitudinal Asymmetry in the Dayside Atmosphere of WASP-43b

June 14, 2024 updates

Small, cool and sulfurous exoplanet may help write recipe for planetary formation

Watery planets orbiting dead stars may be good candidates for studying life—if they can survive long enough

NGTS-30b/TOI-4862b: An ~1 Gyr old 98-day transiting warm Jupiter

Fundamental effective temperature measurements for eclipsing binary stars – V. The circumbinary planet system EBLM J0608−59

Buoyancy torques prevent low-mass planets from stalling in low-turbulence radiative disks

The CUISINES Framework for Conducting Exoplanet Model Intercomparison Projects, Version 1.0

High-resolution transmission spectroscopy of warm Jupiters: An ESPRESSO sample with predictions for ANDES

Constraints on the formation history and composition of Kepler planets from their distribution of orbital period ratios

A formation pathway for terrestrial planets with moderate water content involving atmospheric-volatile recycling

Probing atmospheric escape through metastable He I triplet lines in 15 exoplanets observed with SPIRou

Different Planetary Eccentricity-Period (PEP) Distributions of Small- and Giant-Planets

More Likely Than You Think: Inclination-Driving Secular Resonances are Common in Known Exoplanet Systems

What no one has seen before: gravitational waveforms from warp drive collapse

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