Blue Origin narrowing in on root cause of catastrophic rocket accident - Ars Technica

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Blue Origin provided its first substantive update this week on the cause of the catastrophic loss of the New Glenn rocket and most of its launch pad infrastructure at Cape Canaveral, Florida, in May.

The space company’s chief executive, Dave Limp, said investigative work is continuing into the anomaly that happened during a hot-fire test of the rocket during the evening of May 28, 2026. He confirmed, for the first time, widespread speculation that the problem started in one of the rocket’s seven BE-4 engines that power the vehicle’s first stage.

“The anomaly originated at the main oxygen valve on one of the BE-4 engines, which was later confirmed by hardware recovery and inspections,” he said. “Extensive component-level and engine hotfire tests have been conducted to understand the failure mode better and inform mitigations.”

No root cause found yet

Limp said the company’s path forward is “clear” as it works toward returning the New Glenn rocket to flight before the end of this year.

“We’re making small modifications to the valve that can be quickly retrofitted to existing engines,” he said. “We’re manufacturing the updated hardware, which will be ready by the end of this month. In parallel, we’re working through the remaining fault tree analysis.”

This is a positive update, and the transparency is appreciated. However, it also seems clear from Limp’s statement that the company has not yet identified the root cause of the issue.

The update was published 10 weeks after the hot fire test anomaly, and in parallel Blue Origin has rapidly been working to clear debris around the sprawling Launch Complex 36-A site in Florida and starting to rebuild a launch tower. Multiple sources have said the company is operating with a sense of urgency and sparing little expense in its efforts to resume launching the heavy lift rocket.

Combining urgency and funding

Blue Origin founder Jeff Bezos has made it clear that he wants to see New Glenn flying before the end of the year. Tory Bruno, the president of national security for Blue Origin, indicated on the social media site X that the next flight of New Glenn could carry the company’s “Blue Ring” spacecraft. “She’s in final build now for a flight this year,” Bruno said Wednesday of the spacecraft.

Despite the progress in both understanding the cause of the failure and rebuilding the launch site, the end-of-the-year timeline still seems to be extremely ambitious.

However, it is clear that Blue Origin, which historically has appeared sluggish and unfocused in its various efforts across the space ecosystem, is now laser-focused on getting New Glenn back into service. This is a new era for Blue Origin and suggests that Limp’s hire to lead the company has led to a significant transformation. In other words, the long-slumbering giant in the US space industry may finally be waking up.

And just in time. New Glenn is central to the company’s future success, of course. But beyond this, it is essential to NASA’s lunar ambitions to establish a Moon base and for the broader commercial space industry that is grappling with the difficulty of finding launch alternatives to the Falcon 9 rocket, which is increasingly difficult to procure for non-SpaceX missions.

Eric Berger

Senior Space Editor

Eric Berger

Senior Space Editor

Eric Berger is the senior space editor at Ars Technica, covering everything from astronomy to private space to NASA policy, and author of two books: Liftoff, about the rise of SpaceX; and Reentry, on the development of the Falcon 9 rocket and Dragon. A certified meteorologist, Eric lives in Houston.

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