Elon Musk Offers Support After Blue Origin Traces New Glenn Explosion to BE-4 Engine Valve

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Elon Musk offered support to Blue Origin after the Jeff Bezos-owned company traced the May 28 New Glenn launchpad explosion to the main oxygen valve on one of the rocket's seven BE-4 engines. Blue Origin CEO Dave Limp confirmed that recovered hardware and inspections identified the valve as the anomaly's starting point, and the company is making small modifications that crews can retrofit to existing engines, with updated hardware expected by the end of August. The explosion destroyed a lightning tower and the transporter-erector but caused no injuries, and key methane, hydrogen, and oxygen tanks survived. The finding supports NASA Administrator Jared Isaacman's July assessment that investigators had honed in on a potential engine issue, and Blue Origin is reconfiguring Launch Complex 36 as it targets a return to flight before the end of 2026. The BE-4 valve issue carries wider stakes because United Launch Alliance's Vulcan rocket also uses two of the engines, and ULA is collaborating with Blue Origin on the investigation.

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Blue Origin, LLCPrivate▼ Negative
Technologyrelevance

New Glenn explosion traced to BE-4 engine valve, causing delays.

United Launch AlliancePrivate▼ Negative
Supplyrelevance

Vulcan rocket uses BE-4 engines; valve issue may delay launches.

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