The Autumn meeting of NASA’s Extraterrestrial Materials Analysis Group (ExMAG) has come and gone. Since the big meeting is Spring, this was mostly updates. And since there was MetSoc, EPSC, and DPS, yet no Mars Sample Return news, updates were minor.
Nothing new in New Astronomy vol. 114 (Jan. 2025) per this blog. That’s newness for you- don’t know which direction ‘new’ will go at any time.
In the Res. Notes. Astron. Astrophys. issue for Dec.: Kokhirova, G. l. Zhang, M. Li, X-G. et al. Near-Earth Asteroids as the Parents of the δ-Cancrid Meteoroid Stream a. 125002 ad8c87 Dark comets are asteroids- nominally- that actually show (metaphorically)… Read More »Note, Paper: Dark Comets Deux
I wrote previously (twice) on the Japanese COIAS Program (Come On! Impacting ASteroids) and its connection to the manga/TV show Asteroid in Love (Koisuru Asteroido in Japanese, abbreviated Koi As). Now I write again, courtesy of the IAU’s Working Group, Small… Read More »…COIAS Continued…
In Astronomy & Astrophysics, Volume 691 Nov. 2024: Fiore, F. Matteucci, F. Spitoni, E. et al. A census of the Sun’s ancestors and their contributions to the Solar System chemical composition A46 202451076Hajduková, M. Stober, G. Barghini, D. et al. No… Read More »Note, Paper: A&A Day
From the latest MAPS (Meteoritics and Planetary Science), too new to have article numbers yet: Schönbächler, M. Fehr, M. A. Yokoyama, T. et al. Zirconium isotope composition indicates s-process depletion in samples returned from asteroid Ryugu .14279 S-process isotopes are components… Read More »Note, Paper: Where are the Stars?
Some “asteroids” are actually dark comets. I repeat: some asteroids ACTUALLY COMETS: Taylor, A. G. Seligman, D. Z. Holman, M. J. et al. Strong Nongravitational Accelerations and the Potential for Misidentification of Near-Earth Objects a 190 ad85e3 In the Dec… Read More »N, P: When’s an Asteroid Not an Asteroid?
Now an asteroid: the small body temporarily designated 2005 YQ29 is, officially, (335500) Espresso, per the IAU Small-Body Nomenclature Group. That’s right, the drink originating in Italy. Perk up for the workweek!
You didn’t think a mini-moon (Temporarily-Captured Flyby, or TCF) would go by uncommented? I generally stay away from citing arXiv, since it’s basically uncontrolled. But the response time for Mini-Moon 2024 PT5 is too short for a refereed journal, so… Read More »Note, Pa-pre: Mini-moon 2024 PT5
I mention that meteoritics, the study of meteorites in hand, often drills much deeper than astronomy (observing dots in the sky), or actual space flights (limited by mass, volume, power, data, etc.). In this paper (in the Dec. issue of… Read More »Note, Paper: Ge-ex-chimica