Blue Origin says it is building a higher-performing rocket engine at 1/4 the cost

Blue Origin is upgrading its New Glenn rocket with a more efficient engine called Northstar, which has 30% less mass, is 65% 3D-printed, and is expected to be manufactured at 25% of the cost of the current BE-4 engine. The new engine will have a starting thrust of 715,000 pounds, an increase from the current BE-4 engine's 640,000 pounds. Additionally, Blue Origin is developing a hydrogen-oxygen third stage for the rocket called GS3, which will provide an extra kick. The upgrades aim to increase the rocket's payload capacity and reduce production costs, with the goal of launching over 1,000 times a year.