Let’s see what else we can see on our little traveler: https://www.astronomerstelegram.org/?read=17726 Bockelee-Morvan, D. Langevin, Y. Poulet, F. et al. Detection of H2O in the coma of interstellar comet 3I/ATLAS with MAJIS/JUICEATel #17726; on 23 Mar 2026; 14:32 UT 3I/ATLAS… Read More »ATLAS Gas Passed MAJIS
It’s time for the 12th cometary dust meeting, 17th – 19th March in Graz, Austria (venue: Space Research Institute): https://www.oeaw.ac.at/iwf/events/dust-workshop “This meeting is the twelfth of a series of workshops dedicated to share, compare and discuss cometary dust studies to… Read More »12th Cometary Dust Meeting
More data points on our interstellar comet: www.astronomerstelegram.org/?read=17719 Bolin, B. Wong I. Abron, L-M. December 2025 Gemini spectroscopic and photometric constraints on the activity and gas contents of 3I/ATLASATel #17719 The Gemini telescopes (that’s right, two of them) are “facility”… Read More »ATLAS Activity/Gas Track Telegram
Breaking news from the arXiv preprint site: Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2603.10350Ren, X. Yan, W. Zhao, R. et al. Interstellar Object 3I/ATLAS Observed from Mars by China’s Tianwen-1 Spacecraft Standard Disclaimer: ArXiv is ArXiv. If you haven’t gathered… Read More »China Flight Sights 3I
Wow, what a day for preprints (i. e., the arXiv site): Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2603.06911Cordiner, M. Roth, N. X. Micheli, M. et al. Isotopic Evidence for a Cold and Distant Origin of the Interstellar Object 3I/ATLAS arxiv.org/abs/2603.07026Salazar… Read More »ATLAS Gas And Atom-Mass Variant Preprints
Let’s check up on our guest comet, courtesy of arXiv: Astrophysics > Earth and Planetary Astrophysics 2602.23586Medler, K. Hoogendam, W. B. Ashall, C. et al. Contemporaneous Optical and Near-Infrared Observations of the Interstellar Comet 3I/ATLAS Pre- and Post-Perihelion[Submitted on 27 Feb… Read More »3I/ATLAS Tracking (Gases and Path Stats)
Yet again, the February issue of A&A (vol. 706) still says “in progress”. But March is up, so here goes: Carruba, V. Sfair, R. Winter, O. C. The dynamically hazardous asteroid 2025 TV10 – A new co-orbital asteroid of Venus … Read More »Note, Paper: Hot Mess (or Not)
Mustn’t let our interstellar guest slip away unnoticed: Astrophysics > Earth and Planetary Astrophysics arxiv.org/abs/2602.21586Hartman, J. D. Bakos, G. Á. Jordan, A. et al. HATPI Pre-Perihelion Time-series Photometry of the Interstellar Comet 3I/ATLAS[Submitted on 25 Feb 2026] Standard Disclaimer: The… Read More »HATPI ATLAS Chance Gathering
Let’s stay current with Planetary Science Journal (all articles 2026, vol. 7): Fraser Gillan, A. Fitzsimmons, A. Chandler, C. O. et al. On the Border: Searching for Cometary Activity near the Centaur-JFC Transition Line 3 ae2c7fDeshapriya, J. D. P. Hasselmann,… Read More »Note, Paper: Activity, Activation, and Adsorption
Just up on the IAU (International Astronomical Union) home page: www.iau.org/IAU/News/Ann2026/Comet-3IAtlas.aspx -, 23 Feb 2026 IAU Combats Misinformation on Interstellar Object Comet 3I/Atlas Not very fast-reacting, those IAU media specialists. Still, it’s quite good and handy to have our highest,… Read More »Astronomers Combatting ATLAS Pap