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.

February 23, 2024 updates

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

The Solar Neighborhood LI: A Variability Survey of Nearby M Dwarfs with Planets from Months to Decades with TESS and the CTIO/SMARTS 0.9 m

Quenching-driven equatorial depletion and limb asymmetries in hot Jupiter atmospheres: WASP-96b example

Automated chemical reaction network generation and its application to exoplanet atmospheres

February 22, 2024 updates

Analysis of Using the Light Pressure Effect to Drive Spacecraft under Complex Conditions

Introducing the Exoplanet Escape Factor and the Fishbowl Worlds (Two conceptual tools for the search of extra terrestrial civilizations)

Fundamentals for habitable scenarios for Earth-like planets in the TRAPPIST-1 system

How to build a habitable planet? An interview with Charles H. Langmuir

The Orbital Geometries and Stellar Obliquities of Exoplanet-hosting Multistar Systems

A Tale of Two Peas-In-A-Pod: The Kepler-323 and Kepler-104 Systems

Computing Transiting Exoplanet Parameters with 1D Convolutional Neural Networks

The effect of lightning on the atmospheric chemistry of exoplanets and potential biosignatures

Planetary atmospheres Through Time: Effects of Mass Loss and Thermal Evolution

A formally motivated retrieval framework applied to the high resolution transmission spectrum of HD 189733 b

February 21, 2024 updates

Detectability of Surface Biosignatures for Directly Imaged Rocky Exoplanets

Constraining planetary formation models using conditional occurrences of various planet types

Dynamically coupled kinetic chemistry in brown dwarf atmospheres – II. Cloud and chemistry connections in directly imaged sub-Jupiter exoplanets

Automated Scheduling of Doppler Exoplanet Observations at Keck Observatory

JWST Transmission Spectroscopy of HD 209458b: A Supersolar Metallicity, a Very Low C/O, and No Evidence of CH4, HCN, or C2H2

NASA Exoplanet Exploration Program (ExEP) Mission Star List for the Habitable Worlds Observatory (2023)

Pre-perihelion Monitoring of Interstellar Comet 2I/Borisov

Reduced-resolution beamforming: lowering the computational cost for pulsar and technosignature surveys

Evidence of apsidal motion and a possible co-moving companion star detected in the WASP-19 system

Metallicities and Refined Stellar Parameters for 52 Cool Dwarfs with Transiting Planets and Planet Candidates

February 20, 2024 updates

The Bona Fide of Non-Human Intelligence (NHI) Exploring Earth: Evolutionary Pressure and the Halting Problem

Tidal Dissipation in Giant Planets

Cosmic dust fertilization of glacial prebiotic chemistry on early Earth

TIaRA TESS1: Estimating exoplanet yields from Year 1 and Year 3 SPOC lightcurves

Search for stellar companions of exoplanet host stars with AstraLux/CAHA 2.2 m

Technosignatures Longevity and Lindy’s Law

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems. IV. NIRISS Aperture Masking Interferometry Performance and Lessons Learned

A uGMRT search for radio emission from planets around evolved stars

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

Water Vapour Transit Ambiguities for Habitable M-Earths

On the Ocean Conditions of Hycean Worlds

Signature of the atmospheric asymmetries of hot and ultra-hot Jupiters in lightcurves

February 19, 2024 Updates

The bouncing barrier revisited: Impact on key planet formation processes and observational signatures

The tidal deformation and atmosphere of WASP-12b from its phase curve

Accretion of primordial H-He atmospheres in mini-Neptunes: the importance of envelope enrichment

Strong fractionation of deuterium and helium in sub-Neptune atmospheres along the radius valley

Habitable planet to sustainable civilization: Global climate change with related clean energy transition reliant on declining critical metal resources

Resonant Chains and the Convergent Migration of Planets in Protoplanetary Disks

1 2 311