Impact craters on Pluto and Charon indicate a deficit of small Kuiper belt objects.
Singer KN, McKinnon WB, Gladman B, Greenstreet S, Bierhaus EB, Stern SA, Parker AH, Robbins SJ, Schenk PM, Grundy WM, Bray VJ, Beyer RA, Binzel RP, Weaver HA, Young LA, Spencer JR, Kavelaars JJ, Moore JM, Zangari AM, Olkin CB, Lauer TR, Lisse CM, Ennico K; New Horizons Geology, Geophysics and Imaging Science Theme Team; New Horizons Surface Composition Science Theme Team; New Horizons Ralph and LORRI Teams.
Singer KN, et al. Among authors: weaver ha.
Science. 2019 Mar 1;363(6430):955-959. doi: 10.1126/science.aap8628.
Science. 2019.
PMID: 30819958