GoKawiilBlue Origin unveils GS3 third stage and Northstar booster engine for New Glenn
Blue Origin announced a new third stage, GS3, powered by a single BE-7 engine, intended to send satellite constellations to geostationary orbit and support deep-space and lunar missions. The company also revealed Northstar, a methalox first-stage engine producing 715,000 pounds of thrust, which it says is 30% lighter and has 50% fewer parts than its existing BE-4 engine. Blue Origin said an unnamed government customer has already booked a GS3 mission to cislunar space targeted for 2028.
GoKawiil's interpretation of the reporting above, not reported fact.
The GS3 stage could position New Glenn to compete for lunar and deep-space contracts currently dominated by SpaceX's Starship, especially given NASA's Artemis program need for cislunar logistics. Northstar's claimed reductions in mass, parts and production time suggest Blue Origin is trying to cut costs and speed up manufacturing, which could make its rockets more competitive if the engine performs as described. The undisclosed government booking hints at early institutional confidence in the new stage, though its scope and cost remain unclear.
- Blue Origin's new GS3 third stage targets direct geostationary and lunar transit missions.
- Northstar engine claims 715,000 lbf thrust with 30% less mass and 50% fewer parts than the BE-4.
- An unnamed government customer has booked a GS3 cislunar mission for 2028.
Source: science.slashdot.org, 2026-11-06
Published there as: “Blue Origin Announces New Glenn Third Stage, New Booster Engine”
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