Blue Origin on November 5 announced two additions to its New Glenn heavy-lift rocket: GS3, an optional third stage for sending payloads directly to geostationary orbit and toward the Moon, and Northstar, a new first-stage engine meant to eventually replace the BE-4. Space.com reports that an unnamed government customer has already booked a GS3 mission to cislunar space, targeted for 2028.
Why it matters: New Glenn is Blue Origin's answer to SpaceX's Falcon Heavy and Starship, and its 2026 has been rough. The April 19 flight left AST SpaceMobile's BlueBird 7 satellite in the wrong orbit, where it was lost, and on May 28 a New Glenn exploded on the pad during an engine test at Cape Canaveral, according to Space.com. The two announcements target both halves of the business problem: GS3 lets the rocket reach destinations it can't serve well today, and Northstar goes after the cost of every launch.
GS3: a third stage for GEO and the Moon
| Detail | What Blue Origin says | Source |
|---|---|---|
| Engine | One BE-7, the hydrogen-oxygen engine built for the Blue Moon lander | Space.com |
| Job | Direct insertion into geostationary orbit; heavy science and exploration missions to the Moon and deep space | Space.com, UNN |
| Packaging | Sits inside the interstage, so the payload keeps the full fairing volume | UNN, citing Ars Technica |
| Structure | Mostly composite, to keep mass down | UNN, citing CEO Dave Limp via Ars Technica |
| Capacity | Up to 20 t toward the Moon on the 9x4 version; 10 t to trans-lunar injection on the standard 7x2; up to 14 t to GEO | Starlust |
| First flight | 2028, cislunar mission for a government customer | Space.com, UNN |
Today's New Glenn has two stages and can put about 13 metric tons into geostationary transfer orbit, Space.com notes, which leaves a satellite to raise its own orbit over weeks or months. A third stage that drops satellites directly into GEO saves them that fuel and time. Blue Origin also says GS3 can support "sustained operations around the moon," but its own Blue Moon landing missions won't need it.
Hydrogen is the hard part. As UNN relays from Ars Technica, liquid hydrogen leaks easily, and repeated cold cycles and stress can crack composite tanks. Blue Origin says it held a 5.5-meter composite hydrogen tank at 100% of maximum expected pressure for 2.5 hours and at 150% for 10 minutes at its Launch Site One in Texas.
Northstar: a simpler, stronger BE-4
Northstar keeps the BE-4's basic recipe — liquid oxygen and liquid methane in an oxygen-rich staged-combustion cycle — but Blue Origin claims big manufacturing gains:
| Spec | BE-4 | Northstar |
|---|---|---|
| Thrust | 640,000 lbf | ~715,000 lbf |
| Mass | baseline | 30% lower |
| Part count | baseline | 50% fewer |
| Target unit cost | baseline | about 25% of a BE-4 |
Figures are company claims, reported by Space.com and by UNN citing Ars Technica. Starlust says more than 65% of the engine is additively manufactured, and Blue Origin says assembly should eventually take under a day. The engine went from program approval to development testing in 11 months, but no first-flight date was given.
The BE-4 isn't going away: United Launch Alliance's Vulcan uses two per launch, UNN notes. On New Glenn, whose 7x2 booster carries seven BE-4s and whose 9x4 version carries nine, a cheaper and lighter engine compounds quickly.
What to watch
- Return to flight. None of this matters until New Glenn flies again; Space.com says the fourth flight is expected late in 2026.
- Northstar's first hot-fire results and when Blue Origin commits it to a flight booster.
- The 2028 GS3 customer. Blue Origin hasn't named it, so the size and purpose of the first cislunar payload are still unknown.
Who should care: satellite operators shopping for direct-to-GEO rides, NASA and lunar-program watchers, and anyone tracking whether there will be a real second heavy-lift supplier alongside SpaceX.
