The Journal of the Astronautical Sciences has a special issue, “Navigating Asteroid Impact Hazards: Astronautics Strategies for Planetary Defense” (link.springer.com/collections/didcicgjgf), which I’ve written about before. The special “issue” keeps going into April (vol. 73 #2): McMillan, R. S. Brucker, M.… Read More »Note, Paper: More ‘Roid Toil
It’s finally here. After the first paper in February, the two linked papers are now in the new, next (April) issue of J Astronaut Sci. They’re all part of a special collection (a virtual “issue”), “Navigating Asteroid Impact Hazards: Astronautics… Read More »Note, Paper: Hazard Eval Triad (…and Pals)
Just out in this week’s Science Advances (6 Mar 2026, vol. 12 #10): Makadia, R. Chesley, S. R. Herald, D. et al. Direct detection of an asteroid’s heliocentric deflection: The Didymos system after DART .aea4259 Yes, that DART mission struck… Read More »Note, Paper: DART Imparted Larger Charge
Previously, we determined that near-Earth asteroid 2024 YR4 would not threaten the Earth in the 2030s (or on any other near-term apparition). But the possibility of an impact on our Large Achondrite satellite had not been ruled out yet. Should YR4… Read More »2024 YR4 No Risk (…At All)
I spoke too soon on Celestial Mechanics and Dynamical Astronomy (Celest. Mech. Dyn. Astron. for “short”) for Feb (vol.138 #1). They’re still going: Liu, X. Armellin, R, Pirovano, L. et al. Analyzing collision probability for asteroids detected on too short… Read More »Note, Paper: Note Impactor!!!
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)
The quite wordy Celestial Mechanics and Dynamical Astronomy (usually Celest. Mech. Dyn. Astron., whew) has published (Feb, vol. 138 #1): Carruba, V. Caritá, G. Aljbaae, S. et al. Co-orbital asteroids of terrestrial planets affected by the von Zeipel-Lidov-Kozai mechanism 8 … Read More »Note, Paper: Stable Gravel Travels
The January Astronomy & Astrophysics (vol. 705) still says ‘in progress’. But it’s February, and the February issue is posting articles. So here’s Jan anyway: Serra-Ricart, M. Licandro, J. Alarcon, M. R. Pre-perihelion detection of a wobbling high-latitude jet in… Read More »Note, Paper: Leads that Matter on Scattering Seeds
Normally, I don’t expect much from Astronomy Journal. February (vol. 171 #2) was a surprise: Fan, X. Zhang, X. Xu, X. et al. Photometric Observations and Analysis of Active Asteroid (62412) 2000 SY178 Art 68 ae2678Cordova Quijano, S. A. Ye,… Read More »Note, Paper: Crack and Track 4-Pack
Let’s get caught up again with arXiv preprints: Earth and Planetary Astrophysics > arxiv.org/abs/2601.15443Tan, H. Yan, X. Li, J-Y. Perihelion Asymmetry in the Water Production Rate of the Interstellar Object 3I/ATLAS[Submitted on 21 Jan 2026] arxiv.org/abs/2601.16983Hoogendam, W. B. Jones, D.… Read More »ATLAS Gas and Path Abstracts