From: here@is.invalid   
      
   Hubble telescope revived after a grueling month of darkness. Here's   
   what went wrong.   
      
   NASA scientists think the problem came from a wonky power circuit,   
   which told the satellite's computer to shut down.   
   ...   
   ...   
   "The team's analysis suggests that either the voltage level from the   
   regulator is outside of acceptable levels (thereby tripping the   
   secondary protection circuit), or the secondary protection circuit has   
   degraded over time and is stuck in this inhibit state," NASA wrote on   
   July 14.   
      
   NASA technicians got around this problem by switching operations over   
   to the satellite's backup payload computer, and activating a backup   
   Power Control Unit.   
      
   https://www.space.com/hubble-space-telescope-revived-from-safe-mode   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)