From: petertrei@gmail.com   
      
   On 2/4/2026 9:00 PM, Lawrence D’Oliveiro wrote:   
   > On 4 Feb 2026 22:17:26 GMT, Ted Nolan  wrote:   
   >   
   >> I read somewhere today that Artemis was mandated by Congress to use   
   >> 1970s Space Shuttle tech for some reason.   
   >   
   > The assumption would have been that reusing existing technology would   
   > save costs and reduce debugging time/pain.   
   >   
   > Of course that idea led to its own complications. I recall that   
   > servicing the Space Shuttle Main Engines was a particularly tricky   
   > job, I think because they were not designed for reuse.   
      
   I think you have it backwards. The RS-25 Space Shuttle Main Engines   
   were explicitly designed to be reused, and were reused. Many   
   flew 10 times, and some around two dozen times.   
      
   Using them as disposable in Artemis always stuck in my craw.   
      
   https://en.wikipedia.org/wiki/RS-25   
      
   pt   
      
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