In a game I recently played I noticed my enemy sent his research ship out to hide in a dust cloud, but I had scouts there. I immediately sent all my fighters out to kill it. As the fighters approached you could see additional hubs making their way out to the “hidden” core. I discovered that you cannot target non-attached hubs. You literally can only give a kill order on the core. This leads to the event where killing the core destroys ALL INROUTE HUBS! My enemy had 3 hubs between the research ship core and his MS. They all blew up into little bits.
Lol that’s pretty epic