BLUE ORIGIN SAYS IT IS BUILDING A HIGHER-PERFORMING ROCKET ENGINE AT 1/4 THE COST

Summary from the TLDR newsletter

Blue Origin has announced two significant upgrades to its New Glenn rocket that reduce the cost of manufacturing the vehicle and expand its capacity for payload delivery. The company aims to eventually launch the vehicle more than 1,000 times a year. It has started test firing a new engine that will eventually replace the BE-4 engine that powers the first stage of New Glenn. The company is also developing a hydrogen-oxygen third stage for the rocket to give it an extra kick.