Our interstellar friend is behind the Sun (to observers on or near Earth). Good time to recap activity (emission of coma and tail(s)) so far: Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2510.18769[Submitted on 21 Oct 2025]Jewitt, D. Luu, J. Pre-perihelion… Read More »First-Half ATLAS Activity Track
The “issues” of Monthly Notices of the Royal Astronomical Society (MNRAS) for October are up: volume 542, #4 – volume 543, #1Li, Z. Qiao, D. Li, X. Spatial temporary capture in the Sun–planet three-body system Pgs 625 staf1430 volume 543,… Read More »Note, Paper: Planetary Particles Aplenty
The characterization continues. With the trajectory well-determined over a long arc, we check and recheck spectral bands and lines (therefore, compositions): Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2510.02817[Submitted on 7 Oct 2025]Coulson, I. M. Kuan, Y-J. Charnley, S. B. JCMT… Read More »3I Cyanide Multi-Time Described
More spectral sleuthing attempted at ATLAS: Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2509.26053[Submitted on 30 Sep 2025]Hutsemékers, D. Manfroid, J. Jehin, E. et al. Extreme NiI/FeI abundance ratio in the coma of the interstellar comet 3I/ATLAS As I’ve mentioned before,… Read More »3I/ATLAS Flash-To-Gas Graphed
Today, in Space Science Reviews (vol. 221): Bannister, M., Pfalzner, S., Pearce, T. et al. The Origins & Reservoirs of Exocomets 90 s11214-025-01219-w Coming on the heels of the Solar System in Context meeting (noirlab.edu/science/events/websites/solar-system-in-context-2025), we have a ‘comets in… Read More »Space Science Reviews Exocomets
The Sep issue (vol. 701) of Astronomy & Astrophysics still says “in progress”, but I’m going ahead: Minker, K. Carry, B. Vachier, F. et al. A dynamical dichotomy in large binary asteroids A42 202554973Hmiddouch, S. Jehin, E. Lippi, M. et… Read More »Note, Paper: Dynam-Activity
Next week: a conference hosted by NOIRLab (National Optical/InfraRed Lab) on our star system… and others: THE SOLAR SYSTEM IN CONTEXT noirlab.edu/science/events/websites/solar-system-in-context-2025 We are happy to announce the 2025 NOIRLab Science Conference: The Solar System in Context, which will take… Read More »Solar System In Context Meeting
In Nature Communications recently, vol. 16: Santana-Ros, T. Bartczak, P. Muinonen, K. et al. Hayabusa2 extended mission target asteroid1998 KY26 is smaller and rotating faster than previously known Art 8275 s41467-025-63697-4 Can’t have too many surprises for the Hayabusa2# investigation-… Read More »Note, Paper: Pre-flew Preview
The “issue” of Monthly Notices of the Royal Astronomical Society for September is posted. In it: Volume 542, Issue 1Kleshchonok, V. Sierks, H. Güttler, C. Inner coma of comet 67P/Churyumov–Gerasimenko during increased activity at perihelion on 2015 August 22–23 Pgs… Read More »Note, Paper: Part Departed, or Hardly?
The Planetary and Space Science issue for 1 Oct (vol. 265) includes: Gallot, T. Sedofeito, C. Ginares, A. et al. Seismic wave experiments in granular media with applications to asteroids Art 106153 .2025.106153Barbieri, C. Beolchi, A. Bertini, I. et al. Preparing for… Read More »Note, Paper: We Cover Pre-Recovery