Making a game universe seem alive and 'real' is a challenge all gamemasters face. Once thing that can help is throwing in the occassional small detail, to make the players feel the setting has many more details they just haven't noticed yet. In a space setting, one simple detail a gamemaster can add is a model name for the different ships in the settings, beyond generic ship types like "trader", "fighter", "shuttle", etc.
101 Starship Model Names offers a quick list for the busy gamemaster of 101 possible names for starship models. Refer to the list and pick a name you like, or roll some dice and use the result whenever you need a ship model name. Examples from the list: