Ring in the new

摘要

To date, rings containing icy and rocky particles have been known to orbit only the four giant planets in the Solar System, most notably Saturn1. Now, continuing natures excellent track record of upending the firm beliefs of planetary theorists, a fully developed ring system has been detected surrounding the Centaur object (10199) Chariklo, as Braga-Ribas et al.2 report on page 72 of this issue.