Getting a bit deep in Planetary And Space Science for April (vol. 258):
Alves, A. A. Carruba, V. Delfino, E. M. D. S. et al. Deep learning identification of asteroids interacting with g-s secular resonances Art 106062 .2025.106062
Quan, R. H. Liu, Z. G. Song, Z. Y. Effect of work function on dust charging and dynamics on airless celestial body Art 106065 .2025.106065
Shafieenejad, I. Maximizing the velocity deflection of asteroid Didymos using the Whale Optimization Algorithm Art 106075
Deca, J. Divin, A. Stephenson, P. A fully kinetic perspective on weakly active comets: Asymmetric outgassing Art 106064 .2025.106064
The question of NEO dynamics- origin, lifetime, and fate- is certainly interesting (!) but a bit chaotic. We know asteroids must at some point come from the Main Belt (or occasionally, circularized comets), but after that it’s gravitational billiards with the planets. Alves (one of the Brazilians planning an asteroid probe) and group attempt further refinements of the ball game.
On a smaller (!) scale, the solar wind and radiation can alter dust and regolith on airless surfaces. This includes lofting small enough particles- a dust cloud. Quan et al. consider that physics.
Shafieenejad considers, besides DART, a space tug- a literal tug. What if we had a tug spacecraft, instead of the impactor? Shafieenejad does the math for us.
And speaking of dust, and dynamics, some small bodies can actually alter their own orbits (if just a bit). Outgassing from comets and active asteroids is generally not symmetrical, and will give the body a push. Let’s quantify that beyond just “a push”, shall we?