According to Aviation Week, NASA is considering paying $150 million to "man rate" an interim upper stage on the "Senate Launch System" heavy lift booster. "Man Rating" is a pure paperwork exercise, checking and recording where every bit, piece, nut, and bolt came from, and what testing it passed. Paperwork costs a lot, weighs a lot, and does not contribute to the mission.
But NASA is in love with it.
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