NASA's New Horizons probe flew past Arrokoth, a weirdly-shaped "Cold Classical" Kuiper belt object. This is a class of objects that had never before been explored up close that can teach us a lot about planetesimal formation and the chemistry of the outer edge of the protoplanetary nebula.
Lowell Observatory's 4.3 meter Lowell Discovery Telescope is fully operational and hard at work making new scientific discoveries, despite the challenges of operating safely during the pandemic.
Observations of Kuiper belt binaries are increasing the number with known mutual orbits and masses. Recent papers focus on the unexpected prevalence of prograde orbits suggesting rapid formation via gravitational collapse of locally over-dense regions in the nebula such as those produced by the streaming instability, instead of capture or collisional fragmentation.
Bonny's Click Consonants book is out, published by Brill.
The new University of Arizona Press Space Science series textbook The Pluto System After New Horizons will be out soon. This is a major update of Pluto system science incorporating results from the New Horizons mission, replacing the obsolete 1997 Pluto and Charon book from the same series.
NASA's Lucy mission will be launched in October to explore Jupiter's swarms of Trojan asteroids, again a class of objects never before seen up close.