There’s a mid-month Advances-in Space Research. For 15 Mar (vol. 77 #6):
Grabowski, J. A. Bellome, Felicetti, L. A diversity-based strategy for asteroid tour design Pg 7039 .2026.01.075
Narziev, M. Khujanazarov, H. F. Meteoroid streams and associations based on radar observations at the Hisar Astronomical Observatory in January 1970 Pg 7484 .2026.01.021
There are over one million asteroids (as of now…). The overwhelming majority will not get high-quality spectra, much less a spacecraft flyby. Looking on the bright side, that means someone with a space mission to launch has their pick of targets. As with Galileo, Deep Space 1, New Horizons, Rosetta, Hayabusa2, and certainly Lucy and Emirates Mission to Explore the Asteroid Belt (MBR), multiple targets can be strung together to get the most out of a perfectly good spacecraft. But how would mission planners best string them together?
The word “diversity” here does not mean legal or administrative disqualification of qualification or whatevers. “Diversity” is used here in the mathematical sense of set theory.
And speaking of countless bodies, meteors happen all the time (even daytime- we just aren’t seeing them). Meteor radars thus pick up myriads of such events. Some are “sporadics”- the natural background of meteor phenomena. But some are truly related to each other, clustering into meteor showers. Narziev and Khujanazarov recap their efforts to pick out those with a bona fide common origin.