In the AIAA‘s Journal of Guidance, Control, and Dynamics for December (vol. 47 #12):
Tsukamoto, H. Chung, S-J. Nakka, Y. K. et al. Neural-Rendezvous: Provably Robust Guidance and Control to Encounter Interstellar Objects p. 2525 1.G007671
Interstellar objects… who doesn’t want to send a mission to a body coming in from another star. The problem is that, in coming from another star, we have to find good trajectories for an intercept… and we would have little warning time, so those trajectories tend to be extreme, if they’re even possible with today’s technology. Everything has to happen fast, including mission design and flight planning. Tsukamoto et al. describe algorithms to pursue interstellar objects, should one be found with good advanced warning, a reachable path through our star system, and reasonable rocket performance. Considering the Vera Rubin Observatory is nearing completion, we should be finding new interstellar objects at a better pace.