Ding-dong! The Exploration Upper Stage is dead
Summary
Ars Technica's analysis argues NASA's Exploration Upper Stage failed to move Artemis forward and represents a costly result of procurement politics. The piece traces the program's decade-long development, escalating costs, and competition from alternative upper-stage solutions, concluding the EUS was effectively obsolete and that resources should have shifted toward cheaper, more capable options like Centaur V and lunar surface missions. It uses regulatory and budgetary context to critique how Congress and NASA managed the program and calls for a more pragmatic approach to future spaceflight architectures.