{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"3d414af411048af2cef4c51429a6a4cd6fae0f6bf904676a05f0a97463426ecc","created":"2026-10-03T07:18:03Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"af134ec71e092fc5a6f629caed1c304f4dfa791a3958d6f77412d04d9ecd43fa","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"earth.giant-planet-interiors.ring-origin","kind":"phenomenon","literature_status":"open","n":"1","parents":[],"plain":"If the rings are young, something recently broke up a moon or passing body near Saturn. If old, they formed with the planet, and their icy composition needs another explanation.","posed_since":"","precise":"Identify the formation mechanism of Saturn's main rings: tidal disruption of a former moon (for example during a satellite-system instability), disruption of a passing body, or primordial formation. An answer is a mechanism reproducing ring mass, ice fraction and the dynamical state of the inner moons.","problem_ref":null,"references":"","settled_by":"Dynamical simulations of satellite-system history matching ring mass and composition together with moon orbits and cratering ages.","status_note":"2026 proposals (arXiv:2602.09281, arXiv:2603.14088) link young rings to a recent satellite instability or moon stripping.","title":"How did Saturn's rings form?","topic_ref":"98930448b979604a081578cbdcee93172ed4efa6774dcfbd338efa6dd2e302c0"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"4622ce4bfb3dc33c1478e9b447d55bcd8c5b10e152caa7f9b93dac58ce2a8b3f","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"fc44b5f6e2a13eb9088ded90188517fcee985729ab9f28f56aa5c96494a5eb60","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"-tIB_KG92dzuUN1u4uR2fSGKuLbN9koaAMs0pNSj0JBiSSJnlwq8iK0OFJmHNt1itcUah8vIgSWSHsM2NAXuBQ"},"schema":"pubphys.envelope/1"},"record_hash":"4622ce4bfb3dc33c1478e9b447d55bcd8c5b10e152caa7f9b93dac58ce2a8b3f","leaf_index":1326}