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.

October 19, 2021 updates

OGLE-2019-BLG-0304: Competing Interpretations between a Planet–binary Model and a Binary-source + Binary-lens Model

HD207897 b: A dense sub-Neptune transiting a nearby and bright K-type star

SOLES II: The Aligned Orbit of WASP-148b, the Only Known Hot Jupiter with a Nearby Warm Jupiter Companion, from NEID and HIRES

Towards multi-dimensional analysis of transmission spectroscopy. Part II: Day-night induced biases in retrievals from hot to ultra-hot Jupiters

Constraining stellar rotation and planetary atmospheric evolution of a dozen systems hosting sub-Neptunes and super-Earths

Orbital obliquity sampling in the Kepler-20 system using the 3D animation software Blender

The key impact of the host star’s rotational history on the evolution of TOI-849b

October 18,2021 updates

How Flat Can a Planetary System Get? I. The Case of TRAPPIST-1

The HARPS search for southern extra-solar planets – XLVI. 12 super-Earths around the solar type stars HD 39194, HD 93385, HD 96700, HD 154088, and HD 189567

Interstellar space biology via Project Starlight

The impact of photospheric brightness field on exoplanetary transit timings and the TTV excess of HD 189733 b

Retention of water in terrestrial magma oceans and carbon-rich early atmospheres

Characterizing the Galactic and Extragalactic Background Near Exoplanet Direct Imaging Targets

The Fine-Tuning of the Universe for Life

October 15, 2021 updates

Old Neighbors, New Neighbors: Terrestrial Nonhuman Persons and SETI

Planet Formation and Panspermia: New Prospects for the Movement of Life through Space

Phosphorus in the Clouds of Venus: Potential for Bioavailability

A compositional link between rocky exoplanets and their host stars

October 13, 2021 updates

Sensitivity to habitable planets in the Roman microlensing survey

Another super-dense sub-Neptune in K2-182 b and refined mass measurements for K2-199 b and c

Modeling the high-resolution emission spectra of clear and cloudy non-transiting hot Jupiters

The TESS-Keck Survey. VI. Two Eccentric sub-Neptunes Orbiting HIP-97166

A New Sedimentation Model for Greater Cloud Diversity in Giant Exoplanets and Brown Dwarfs

Application of the Shannon entropy in the planar (non-restricted) four-body problem: the long-term stability of the Kepler-60 exoplanetary system

Thermal runaway of silicon-based laser sails

1 2 189