S. J. Weidenschilling

Papers

Total Citations

200

H-Index

About

S. J. Weidenschilling is a pioneering figure in planetary science, best known for his foundational work on the formation and evolution of planetesimals and small bodies in the solar system. His key research areas include the dynamics of protoplanetary disks, the origin of binary asteroids, and the collisional history of asteroids. Among his most influential contributions is the seminal paper "Asteroids Do Have Satellites" (2002), which has garnered over 200 citations and helped establish the prevalence of binary systems among near-Earth and main-belt asteroids. This work, co-authored with Merline and others, leveraged early spacecraft and telescopic data to reveal that many asteroids are not solitary but possess moons, reshaping our understanding of asteroid evolution and impact processes. Weidenschilling's theoretical models of particle growth in the solar nebula—particularly his work on the "meter-size barrier" and gravitational instabilities—remain cornerstones of planet formation theory. His research has profoundly influenced how scientists interpret the architecture of the solar system, from the origins of the Moon to the dynamics of Kuiper Belt objects. With decades of impactful studies, Weidenschilling’s legacy endures in both observational and theoretical planetary science.