{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"69d42314ba230d9f815789288848b862fa8380ccb231045ee157a0e247c98d2d","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"aaba0b7ed038699e87900570f65b15119c294d263b66c23bf8dc38cd9c57cda5","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"earth.ocean-worlds","field":"earth","n":"1","review_cite":"F. Nimmo, R. T. Pappalardo, Ocean worlds in the outer solar system, Journal of Geophysical Research: Planets, 2016","review_link":"https://doi.org/10.1002/2016JE005081","review_verified":"true","summary":"Several moons of Jupiter and Saturn hide liquid-water oceans under shells of ice. How thick the ice is, what heats the oceans and how material moves between surface and ocean decide whether they could support life.","title":"Icy-moon oceans and ice-shell interiors","topic_ref":null,"why":"Ocean worlds are the most promising places beyond Earth to search for habitable environments, and missions now en route depend on these answers."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"fce9705aed3acbaf66c27413ec3badd10cbd89376e3f1b6fc466396c06130caa","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"bc68f51682fbfb62cdb349f6467411f1aab2c9a38c27ad6b3f5f559b8963b52a","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"VmLVs1LtRJBcUbvhRyinhlXbSGNRUfb87J0I1ItmdG1DjWLwVniHb_r0ZrXCmPiVDnYGksoiHhzPmf1CgYvRBg"},"schema":"pubphys.envelope/1"},"record_hash":"fce9705aed3acbaf66c27413ec3badd10cbd89376e3f1b6fc466396c06130caa","leaf_index":203}