Like GCA, the journal Icarus is digital and doesn’t have twelve “issues” per year. So time to catch up, with October (vol. 421):
Wargnier, A. G. Doressoundiram, T. Poggiali, A. et al. Spectro-photometry of Phobos simulants. I… Art 116216 .2024.116216
Wimarsson, J. Xiang, Z. Ferrari, F. et al. Rapid formation of binary asteroid systems post rotation… Art 116223 .2024.116223
Novaković, B. Fenucci, M. ASTERIA- Thermal inertia evaluation of asteroid Didymos
Art 116225 .2024.116225
Kossacki, K. J. Mikołajków, T. Szutowicz, S. Dynamics of landslides on ice-rich space objects
Art 116227 .2024.116227
Jiang, Q. Karato, S.-i. Datye, A. et al. Weakening of olivine by hydrogen implantation: Results of … Art 116243 .2024.116243
Opp, E. Hsu, H.-W. Wang, X. et al. Electrostatic regolith size-sorting effects on surface spectra of… Art 116213 .2024.116213
Wargnier et al. prepare for MMX (or just Mars orbiters, looking sideways). The question of Phobos water persists; if there are usable resources on Mars’ nearer satellite, then that would, in one scientist’s words, make it the ‘most valuable real estate in the inner Solar System’. Here, they test remote sensing observations using hypothesized Phobos minerals- what shows up?
On the question of binary asteroids, Wimarsson et al. and Novaković et al. examine various timelines of such heavenly duets. About 15% of Near-Earth Asteroids are binary systems (or tertiaries); this is not hypothetical rhetoric.
And speaking of heavenly motion, landslides on icy objects: that’s meritorious on its face.
Some objects are icy, a greater number are hydrated. In silicate rock, ‘hydrated’ includes crystal substitutions and defects. Silicates may contain -OH groups and protium ions (H+) as carriers of water. This hydration manifests itself as a weakening of that rock, and may be necessary for Earth’s plate tectonics. Jiang et al. give experimental results of this weakening, and its implications on Earth and beyond.
…And speaking of ions, weird things happen in space. Materials can generate charges, just like you can charge and discharge yourself in winter (dry air) by walking across a carpet. Well, empty space is pretty dry ‘air,’ and regolith processes can act like carpet motion. So what’s going on with static on asteroid regoliths? Is it the sand/pebble/gravel population dynamics we have measured on different-sized asteroids? Opp et al. want to know.