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 info@irg.space.

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

October 28, 2026 Updates

Planetesimal Formation under Realistic Gas Dynamics: Dust Concentration in Turbulent and Windy Protoplanetary Disks
https://arxiv.org/abs/2609.38921

Dispersal of protoplanetary disks by the combination of magnetically driven and photoevaporative winds
https://arxiv.org/abs/2001.03949

The Occurrence Rate of Planets Around Subgiant Stars from TESS Photometric Survey
https://arxiv.org/abs/2609.37517

Cometary impacts an unlikely pathway towards the origins of life on Earth
https://www.nature.com/articles/s41598-026-74214-y

An Infant Sub-Saturn in Scorpius-Centaurus
https://arxiv.org/abs/2609.38315

October 27, 2026 Updates

Proxima Centauri’s Angular Diameter Revisited
https://arxiv.org/abs/2610.33373v1

The Fate of Ice Sheets on Near-Synchronously Rotating Land Planets
https://arxiv.org/abs/2610.33884v1

A triple-induced merger in T Ori C, solves the proplyd lifetime problem and the curiously young shell of M42
https://arxiv.org/abs/2609.38550

Two families of multi-planet systems with distinct architectures and stellar hosts
https://www.nature.com/articles/s41550-026-02990-8

Evidence for an Atmosphere on the Ultra-short-period Super-Earth HD 3167 b
https://iopscience.iop.org/article/10.3847/2041-8213/ae7f23

October 23, 2026 Updates

Assessment of the Mass Loss and Radius Change of 3I/ATLAS Based on Observed Production Rates
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stag1941/8914591

Hot Rocks Survey VI: An anomalously hot dayside for the rocky planet GJ 357 b
https://arxiv.org/abs/2609.30552

Planetesimal formation facilitated by streaming instability in weak pressure bumps
https://arxiv.org/abs/2609.34932

Astrometric Evidence for Outer Giant Planets in Known Exoplanet Systems
https://arxiv.org/abs/2609.37160

Atmospheric dynamics and variability of periodically irradiated tidally locked planets
https://arxiv.org/abs/2609.38128

October 20, 2026 Updates

Water gas discs in exo-asteroid belts
https://arxiv.org/abs/2607.11677

Photometric Variability and Rotation of Beta Pictoris b from JWST NIRCam Coronagraphic Imaging
https://arxiv.org/abs/2607.13133

Very Large Telescope observations of interstellar comet 3I/ATLAS III: High-resolution monitoring of CN and forbidden oxygen emission across the perihelion passage with ESPRESSO
https://arxiv.org/abs/2607.15355

Exploration of Exoplanet Atmospheres with the James Webb Space Telescope
https://arxiv.org/abs/2608.05885

A Candidate Innermost Fifth Planet In the HR 8799 System Revealed By JWST NIRISS Aperture Masking Interferometry
https://arxiv.org/abs/2609.10507

High water D/H ratio of the interstellar object 3I/ATLAS is consistent with a low-metallicity origin
https://arxiv.org/abs/2609.12370