Supposedly, NASA retired the MMUs in 1984 (and were part of the reevaluation of spacewalks done in 86, where it was determined they could stay retired). NASA realized the same work could largely be done with robotic arms and tethered walks.
They did introduce a smaller system, the SAFER unit, in like 94 for emergency use only.
Sorry, did some reading. Lol We go with whatever the module says. Maybe because it's so hush-hush, they had to bring the MMUs out of retirement since no one would notice? Or maybe in this world, MMUs were just never retired.
Last edited May 21, 2024 1:14 am