Why did the Narcissus need to be found by a salvage team? - shouldn't it have just got back to Earth?
It occurred to me that when Ripley escapes the Nostromo at the end of Alien, and blows the xenomorph out of the airlock, she then apparently programs the Narcissus life vessel to go to the middle of no-where.
A salvage team rescues her but she could have 'slipped through the core systems' and was 'very lucky to be alive'.
Was the Narcissus not set up to go back to Earth or did Ripley just randomly expect to wake up as if by magic back at good old gateway station?