New Glenn Slips to January 2027: What Happened

What exactly was delayed?

The next flight of New Glenn, Blue Origin's heavy-lift orbital rocket, will not happen in 2026. Blue Origin chief executive Dave Limp told employees in an internal memo on Wednesday 4 November 2026 that the rocket's return to flight is now targeted for January 2027, later than the company's earlier goal of flying again before the end of 2026, according to CNBC, which viewed the memo ^[2]. CNBC says the Financial Times had earlier reported the memo ^[2]; Ars Technica's report also covers the January target ^[3].

The size of the slip matters. A person familiar with the matter told CNBC that the January time frame is about 10 days later than the earlier target ^[2]. Ars Technica framed it the same way, asking what difference a month makes ^[3]. So the headline "delayed to 2027" is accurate, but it describes a move from a late-December target to January, not a delay of a year.

Blue Origin's own public update page, as of 13 November 2026, does not give a launch date. Its latest entry, from 10 November, says a modified engine valve has passed qualification and that the company expects to complete its anomaly investigation later in November ^[1]. The January date therefore rests on the memo as reported by CNBC, the Financial Times and Bloomberg, not on a public Blue Origin statement.

What happened to New Glenn in May 2026?

On 28 May 2026 a New Glenn rocket exploded on its pad at Launch Complex 36, Cape Canaveral, during a pre-launch engine test known as a static fire or hotfire ^[4]. Spaceflight Now put the time at 9 p.m. EDT (01:00 UTC on 29 May, 04:00 Istanbul time) ^[4]. Blue Origin said all personnel were accounted for ^[1].

The rocket was being prepared for what would have been its fourth orbital flight, carrying 48 satellites for Amazon Leo, Amazon's satellite internet network ^[5]. The satellites were not on the rocket; they were still in a separate processing facility ^[4][5]. The launch was to be the first of 24 that Amazon Leo has booked on New Glenn ^[4].

The explosion came days after another setback was closed. Blue Origin had just been cleared by the US Federal Aviation Administration on 22 May to resume flights after the third mission, NG-3, in which an upper-stage problem left a customer satellite in the wrong orbit ^[4]. The FAA said that mishap was caused by a cryogenic leak that froze a hydraulic line ^[4].

What caused the explosion?

Blue Origin traced the anomaly to the main oxygen valve on one of the rocket's BE-4 engines, a finding Limp said was confirmed by recovering and inspecting hardware ^[1]. New Glenn's first stage uses seven BE-4 engines, each producing about 640,000 pounds of thrust ^[5].

The company chose to modify the valve rather than redesign the engine. On 5 August it said the changes were small and could be retrofitted to existing engines ^[1]. On 10 November it said the modified valve had completed qualification testing, was already in the engines for upcoming flights, and was being rolled out across the rest of its fleet ^[1].

Does this affect other rockets?

Yes, potentially. United Launch Alliance's Vulcan rocket uses two BE-4 engines. The Vulcan version is not identical, but ULA told Spaceflight Now that Blue Origin would carry out the necessary modifications on Vulcan's engines too ^[5].

Why did rebuilding the launch pad take time?

The blast damaged Blue Origin's only orbital launch site ^[5]. Early checks were better than feared: on 1 June Limp said the propellant tanks and water tower were in good shape and the main support tower could be repaired in place ^[1]. A booster and three second stages stored in the nearby integration building also looked undamaged ^[1].

Rather than rebuild the pad as it was, Blue Origin changed how it prepares rockets. The company dropped its transporter-erector, the vehicle that carried the rocket to the pad and raised it, in favour of a hybrid process: the stages are joined horizontally indoors, the rocket is lifted upright on the pad by crane, and the payload is added once the rocket is vertical ^[1]. Limp said this would also allow more frequent launches ^[1].

According to CNBC, Limp's memo blamed the new slip on reconstruction delays, including bad summer weather, and Limp said rebuilding at this pace "hasn't been easy" ^[2]. Limp also told CNBC that the first analysis after the explosion suggested no flight until mid-2028 ^[2].

What does the delay mean for Amazon Leo, NASA and SpaceX?

Amazon Leo. The delays have slowed the build-out of Amazon's satellite network, which relies on New Glenn for part of its launches; Amazon has turned to United Launch Alliance and Arianespace in the meantime, CNBC reported ^[2]. Amazon Leo competes with SpaceX's Starlink; the guide Starlink Explained covers how that kind of service works.

NASA and the Moon. Blue Origin's uncrewed Blue Moon Mark 1 lander also needs New Glenn. Ars Technica reported that its launch is planned for spring 2027, after the return-to-flight mission ^[3]. In August a Blue Origin official told Spaceflight Now the company was working to have the first lander ready and stored until New Glenn is ready, and that it expected that launch in the first quarter of 2027 ^[5]. Limp told CNBC the company also has a first customer for a lunar mission in 2028 ^[2].

SpaceX. CNBC calls SpaceX Blue Origin's chief rival and says Blue Origin has been working to ramp up its launch cadence to compete with it; it adds that SpaceX has phased out Falcon 9 launches to prioritize testing Starship ^[2]. Readers following SpaceX as an investment can see the guide SpaceX Stock Price (SPCX).

What did Blue Origin announce on 5 November?

The day after the memo, Blue Origin published two pieces of longer-term news. Neither changes the January target, but they show where the company is heading.

• Northstar engine. A new liquid oxygen and liquefied natural gas booster engine producing 715,000 pounds of thrust, compared with 640,000 for the BE-4. Blue Origin says it has 30% less mass and 50% fewer parts, with more than 65% made by additive manufacturing (industrial 3D printing) ^[6]. It is in development testing; Blue Origin gave no flight date ^[6].
• GS3 third stage. An optional third stage, powered by the BE-7 engine, for missions straight to geostationary orbit or beyond Earth. Blue Origin says it can deliver up to 14 tonnes to geostationary orbit and 20 tonnes towards the Moon on its larger future 9x4 vehicle, and 8 and 10 tonnes on today's 7x2 New Glenn ^[7]. It is under contract for a government lunar-orbit mission scheduled for 2028 ^[7].

What should you watch for next?

• The investigation report. Blue Origin says it expects to finish the anomaly investigation later in November 2026 ^[1].
• A public launch date. So far January comes from a reported internal memo ^[2]. A date on Blue Origin's own site or an FAA licence update would be firmer.
• Pad readiness. The first flight from the rebuilt pad with the new crane-based process is itself a test ^[1].
• Blue Moon Mark 1. Reported for spring 2027, after return to flight ^[3].

Launch dates in spaceflight often move. Treat any target, including January 2027, as a plan rather than a promise.