BE-4 – Spaceflight Now

Blue Origin identifies engine issue behind New Glenn explosion

August 6, 2026 Will Robinson-Smith

The Aug. 5 update from Blue Origin CEO Dave Limp offered the first explanation for what caused the company’s 98-meter-tall (320 ft.) to explode at the pad on May 28.

Blue Origin scrubs first New Glenn launch attempt due to “vehicle subsystem issue”

January 13, 2025 Will Robinson-Smith

Blue Origin stood down from launch after multiple adjustments to the launch time. It ultimately determined that a technical issue was insurmountable in the time remaining on Monday.

Sierra Space’s Dream Chaser prepares for pre-launch journey to the Cape

May 14, 2024 Will Robinson-Smith

Many eyes are on both the payload and the rocket as the Department of Defense awaits its turn to launch missions with ULA’s Vulcan rocket.

ULA test-fires first Vulcan rocket at Cape Canaveral

June 7, 2023 Stephen Clark

United Launch Alliance’s first Vulcan Centaur rocket completed a critical test-firing of its Blue Origin-built BE-4 main engines Wednesday night, clearing one of two remaining technical hurdles before the launcher is cleared for its inaugural flight later this year.

ULA delays Vulcan test-firing to troubleshoot engine ignition system

May 26, 2023 Stephen Clark

United Launch Alliance called off a test-firing of the company’s first flight-rated Vulcan Centaur rocket at Cape Canaveral Thursday to troubleshoot a problem with the booster’s engine ignition system.

First Vulcan rocket rolls back to hangar for ‘adjustments’ prior to test-firing

May 16, 2023 Stephen Clark

United Launch Alliance’s first Vulcan rocket was filled with methane and liquid oxygen propellants at Cape Canaveral last week for a tanking test, but managers decided to move the rocket back inside a hangar for a few adjustments before proceeding with an engine test-firing.

ULA delivers Vulcan test article to Cape Canaveral for ‘pathfinder’ operations

February 13, 2021 Stephen Clark

United Launch Alliance’s first full-scale Vulcan booster with two Blue Origin BE-4 engines arrived at Cape Canaveral Space Force Station on Saturday, the first time in more than a decade that a core stage from a new family of orbital-class rockets has rolled into the Florida launch facility.

ULA, SpaceX win landmark multibillion-dollar launch agreements with Pentagon

August 7, 2020 Stephen Clark

United Launch Alliance and SpaceX beat out Northrop Grumman and Jeff Bezos’ Blue Origin for billions of dollars in U.S. military rocket contracts, and will share the load in launching the Pentagon’s highest-priority national security space missions through 2027, officials announced Friday.

NASA, ULA find launch opportunity for inflatable heat shield demonstrator

May 13, 2019 Stephen Clark

A flight demonstration of an inflatable heat shield that could be used to retrieve reusable engines from United Launch Alliance’s next-generation Vulcan rocket, and for the delivery of heavier cargo to the surface of Mars, is planned for launch in late 2021 or early 2022 as a piggyback payload on an Atlas 5 rocket with a NOAA weather satellite.

Telesat taps Blue Origin to launch broadband satellite fleet

February 4, 2019 Stephen Clark

Telesat has selected Blue Origin’s New Glenn rocket to “play a key role” in delivering potentially hundreds of broadband communications satellites into low Earth orbit under a multi-launch agreement announced last week, as Telesat officials prepare to select between two industrial teams to begin building spacecraft for the Internet network later this year.