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
In Earth and Planetary Science Letters for April (vol. 679): Libourel, G. Portail, M. Guigoz, V. et al. Low temperature brine formation by serpentinization on asteroid (162,173) Ryugu Art 119885 .119885 We know water existed in the early Solar System,… Read More »Note, Paper: Ryugu Vieux Pot-Au-Feu
Wrapping up the big 2026 LPSC meeting: https://www.hou.usra.edu/meetings/lpsc2026/ https://www.hou.usra.edu/meetings/lpsc2026/program/ See also: Part I and II Electronic Posters: Achondrites Cao F. et al. Mineralogy, Petrology, and Geochemistry of Ungrouped Achondrite Northwest Africa (NWA) 4587 [#1880] NWA 4587 is an ungrouped basaltic achondrite with… Read More »LPSC 2026- Part III
Not breaking news but a bit groundbreaking: in Nature Astronomy: Koga, T. Oba, Y. Takano, Y. et al. A complete set of canonical nucleobases in the carbonaceous asteroid (162173) Ryugu s41550-026-02791-z The big news is the discovery of all five… Read More »Note, Paper: Ryugu U-too Goo
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
The Meteoritics & Planetary Science issue for March (vol. 61 #3) is finally up: Dobrică, E. Krot, A. N. Brearley, A. J. Shock metamorphic effects in Itokawa phosphates: A comparison with megaregolith-derived meteorites Pg 351 .70102Seifert, L. B. Erickson, T.… Read More »Note, Paper: Merrillite/Apatite Return Flights Writeup
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
Now up from Geochem J (vol. 60 #2): Matsumoto, Y. Tachibana, S. Dehydration of MgHPO4·3H2O (newberyite) under low pressure conditions and its implications for the surface thermal history of Ruygu and Bennu p7 .GJ26002 Time for some more experimental (laboratory)… Read More »Note, Paper: Phosphate Dehydrate Play
Almost missed this one… PNAS (Proc. Natl. Acad. Sci.) covers mostly biochem and molecular bio, like many science publications. Those are fields with a lot going on now, so astro is rare. Rare, but not zero- in the Feb. issue… Read More »Note, Paper: Dual Amino Routes Seen
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