…speaking of SiTian… The latest issue of Research in Astronomy and Astrophysics (vol. 25 #4) is a special Issue: Pathfinder of the SiTian Project – Progress of Mini SiTian Huang, Y. Liu, J. Wu, H. et al. The Mini-SiTian Array: A… Read More »Note, Papers: SI on SiTian
In Acta Astronautica for Jun 2025 (vol 231): Lu, J. Shang, H. Zhang, X. Speeding up heterogeneous binary asteroid system propagation through the physics-informed neural network Page 64 .02.022Impresario, G. Zinzi, A. Amoroso, M. et al. The Italian microsatellite mission… Read More »Note, Paper: Asternbild Achtung
The new Meteoritics & Planetary Science (May – volume 60, #5) is now online: Connolly Jr, H. C. Lauretta, D. S. McCoy, T. J. et al. An overview of the petrography and petrology of particles from aggregate sample from asteroid… Read More »Note, Paper: CM On Asteroids
In Experimental Astronomy (all-digital, no physical issues) vol. 59, #3: Xiang, W. Jia, P. Li, Z. An Optimization Framework for Wide-Field Small Aperture Telescope Arrays Used in Sky Surveys 32 s10686-025-10004-0 Covering the sky requires more than one telescope: in… Read More »Note, Paper: Better Net-Tels
…see Day 1, Day 2, Day 3, Day 4 It’s now Day 5 of a weeklong conference: wrapping up loose ends. Here, the less technical but no less important soft sciences. And posters; lots and lots of posters. Panel Session… Read More »2025 Planetary Defense Conference, Day 5
…see Day 1, Day 2, Day 3 And now on Day 4 of the PDC, we get to the dramatic, unlikely (and hopefully never likely in our era) part of planetary defense: mitigation. That’s action taken when the impactor has… Read More »2025 Planetary Defense Conference, Day 4
…see Day 1, Day 2 Now, in Day 3, we get into the telescopes (and one antenna) for both detection and tracking: Session 4: Near-Earth Object (NEO) DiscoveryThe Pan-STARRS Search for Near-Earth Objects: 10+ Years old and going strong… Read More »2025 Planetary Defense Conference, Day 3
…see Day 1 The last post was the first day of a big, multi-day conference: lots of pleasantries and generalities. Here now we get into some real meat of the matter. Session 1: Hypothetical Threat Exercise Technical SessionThe international… Read More »2025 Planetary Defense Conference, Day 2
The IAA’s Planetary Defense Conference for 2025 (every odd year) is now going on in Stellenbosch (basically Cape Town), South Africa. No, I am not attending, and …arrg, the program still says “preliminary.” Well, for what it’s worth, here’s the… Read More »2025 Planetary Defense Conference, Day 1
In the Astrophysical Journal Letters issue for May 1 (vol. 984 #1) : Bolin, B. T. Hanuš, J. Denneau, L. et al. The Discovery and Characterization of Earth-crossing Asteroid 2024 YR4 L25 adc910 It’s here: the paper summing up… Read More »2024 YR4: Spill, You