Stuff - and what I'm on about is "other" stuff than we have seen already (i.e. wrecks of known ships) , but odd stuff, stuff that can't be identified, stuff that makes you wonder (Strange formations on planets, abandoned bases, stations, caves ) , stuff that you see in distance but disappears, stuff (mats for instance) that is only found out in the wide black yonder. Load of stuff - not tea loads but just enough.