COLORADO SPRINGS, CO -- Space Systems Command is evaluating mitigation options should Blue Origin’s BE-4 engine, which is powering the United Launch Alliance Vulcan rocket set to fly a portion of the National Security Space Launch manifest procured through fiscal year 2024, face additional development delays. Blue Origin previously expected BE-4 development would be completed by 2017, but that work is years behind, raising concerns that the Vulcan may not be able to meet its planned schedule before a ban...
