A star map appears to lead homeworld of the space jockeys, and in Prometheus, a star configuration turns up time after time after time in various pieces of ancient artwork such as tablets, cave drawings, etc.
|In Prometheus, a reoccurring star system pattern is found on various ancient|
tablets and the wall of a cave
Piles of bodies of multitudes of space jockeys have all be found dead with their bodies bursted open, in a corridor because of the alien life form released in the biomechanic environment. In Prometheus, a pile of empty Engineer flight suits are discovered in a corridor, many appear to be ripped open from the inside, assumed to be what remains of a group of dead Engineers.
c) Hibernation crypt
A lone space jockey found alive aboard its civilisation's homebase in a some form of long term hibernation resting in a pod while the rest of his people have long since died