There has been little to say from Earth and Planetary Science Letters…until now. Volume 648 (15 December 2024) includes: Nimmo, F. Kleine, T. Morbidelli, A. et al. Mechanisms and timing of carbonaceous chondrite delivery to the Earth Article 119112 .2024.119112 The… Read More »Note, Paper: It’s Raining Met
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 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
Little tidbit in Astronomical Journal, Vol 168, #6 (Dec 2): Ai, G. Yin, J. Cui, L. Learning Gravity Fields of Small Bodies: Self-adaptive Physics-informed Neural Networks a 242 ad7951 The AI hype continues. At this moment, there is no real… Read More »Note, Paper: More AI-steroids?
Not immediately applicable, but …soon: in the Publications of the Astronomical Society of the Pacific, November (vol. 136)- Lucas, M. Norris, B. Guyon, O. et al. Visible-light High-contrast Imaging and Polarimetrywith SCExAO/VAMPIRES art. 114504 ad89af The tech of adaptive optics… Read More »Note, Paper: Extreme Subaru
Talk about New Astronomy. In vol. 113 (Dec), we see some details on Aster, the first deep-space probe to come from INPE (the Brazilian space agency)! de Carvalho Assis Goulant, G. Statella, T. Sfair, R. Definition of multispectral camera system… Read More »Note, Paper: Bem-Vindo Brasileiros
Squeaking in the November 1 issue (vol. 384) of Geochimica et Cosmochimica Acta: Beyersdorf-Kuis, U. Ott, U. Trieloff, M. Complex irradiation history of chondrules and matrix- A study of CR2 and some other meteorites p. 65 .09.012 Asteroids (and thus… Read More »Note, Paper: Beyersdorf’s Bodies
And now for a little change of venue. With the obvious exception of “mini-moons” (TCOs and TCFs) asteroid targets are in heliocentric orbits, and often at ranges measured in AUs. Round-trip light time is a few minutes, and it’s unrealistic… Read More »Note, Paper: A-Robot
In Nature Astronomy today (21 Oct.): Matthew A. Pasek, Ryugu’s unexpected phosphorus materials, s41550-024-02387-5 Not only was phosphate in asteroids significant (as I already blogged), but it’s news enough to have the journal Nature bring in an expert to give… Read More »Nature Review Piece- Yes, Nature
Some asteroids are active- shedding mass, like a comet. Bennu is one of them, observed by OSIRIS-REx to be ejecting pebbles to cobbles into space. Now, from the former Soviet, now Russian journal Solar System Research, for October 2024, vol.… Read More »Note, Paper: Activity Ahoy