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.

March 2, 2018 updates

The Complete Transmission Spectrum of WASP-39b with a Precise Water Constraint

Continuous reorientation of synchronous terrestrial planets due to mantle convection

A System of Three Super Earths Transiting the Late K-Dwarf GJ 9827 at 30 pc

Magellan/PFS Radial Velocities of GJ 9827, a late K dwarf at 30 pc with Three Transiting Super-Earths

The continued importance of habitability studies

Habitable Snowballs: Generalizing the Habitable Zone

Simulating the cloudy atmospheres of HD 209458 b and HD 189733 b with the 3D Met Office Unified Model

Inferring Planetary Obliquity Using Rotational & Orbital Photometry

Cool DZ white dwarfs II: Compositions and evolution of old remnant planetary systems

March 1, 2018 updates

Dependence of the Onset of the Runaway Greenhouse Effect on the Latitudinal Surface Water Distribution of Earth-Like Planets

Occurrence Rates from Direct Imaging Surveys

KELT: The Kilodegree Extremely Little Telescope, a Survey for Exoplanets Transiting Bright, Hot Stars

KMT-2016-BLG-0212: First KMTNet-Only Discovery of a Substellar Companion

Changes in the metallicity of gas giant planets due to pebble accretion

The nature of the giant exomoon candidate Kepler-1625 b-i

Exoplanet atmospheres with GIANO. I. Water in the transmission spectrum of HD 189733b

February 28, 2018 updates

Habitable Evaporated Cores and the Occurrence of Panspermia near the Galactic Center

About 30% of Sun-like Stars Have Kepler-like Planetary Systems: A Study of their Intrinsic Architecture

Identifying Young Kepler Planet Host Stars from Keck-HIRES Spectra of Lithium

Exoplanet Classification and Yield Estimates for Direct Imaging Missions

Mass determination of the 1:3:5 near-resonant planets transiting GJ 9827 (K2-135)

Medium-resolution integral-field spectroscopy for high-contrast exoplanet imaging: Molecule maps of the β Pictoris system with SINFONI

Aldebaran b’s temperate past uncovered in planet search data

The architecture and formation of the Kepler-30 planetary system

Water, Methane Depletion, and High-Altitude Condensates in the Atmosphere of the Warm Super-Neptune WASP-107b

H- Opacity and Water Dissociation in the Dayside Atmosphere of the Very Hot Gas Giant WASP-18 b

EPIC247098361b: a transiting warm Saturn on an eccentric P=11.2 days orbit around a V=9.9 star

February 27, 2018 updates

Populations of planets in multiple star systems

EPIC247098361b: a transiting warm Saturn on an eccentric P=11.2 days orbit around a V=9.9 star

Stability Limits of Circumbinary Planets: Is There a Pile-up in the Kepler CBPs?

Validation and Initial Characterization of the Long Period Planet Kepler-1654 b

Valuing life detection missions [This paper isn’t specifically interstellar in
focus, but covers points that also apply to interstellar exploration]

Forming Different Planetary Architectures . I . Formation Efficiency of Hot Jupites from High-eccentricity Mechanisms

Observable signatures of wind–driven chemistry with a fully consistent three dimensional radiative hydrodynamics model of HD 209458b

Outgassing on stagnant-lid super-Earths

Chemistry of a newly detected circumbinary disk in Ophiuchus

Detailed chemical compositions of the wide binary HD 80606/80607: revised stellar properties and constraints on planet formation

The Detectability of Earth’s Biosignatures Across Time

Area Coverage of Expanding E.T. Signals in the Galaxy: SETI and Drake’s N

Implications of the interstellar object 1I/’Oumuamua for planetary dynamics and planetesimal formation

Empirical Tidal Dissipation in Exoplanet Hosts From Tidal Spin-Up

February 26, 2018 updates

Detection of a Millimeter Flare From Proxima Centauri

Direct Multipixel Imaging and Spectroscopy of an Exoplanet with a Solar Gravity Lens Mission

Chaotic Excitation and Tidal Damping in the GJ 876 System

Eyes on K2-3: A system of three likely sub-Neptunes characterized with HARPS-N and HARPS

Dimensionality and integrals of motion of the Trappist-1 planetary system

Signature of Planetary Mergers on Stellar Spins