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
The creature has an abundance of pipes leading from the surrounding machinery into its body.
Discovery of Engineer found alive in a hibernation capsule while his fellow engineers, many in the dome and some in hibernation capsules, have all long ago perished from a biological weapon that got out of control.
This Engineer had outlasted the biological weapon outbreak until unfortunately a group of humans who woke him up and at the same time unleashed the biological weapon again that's contained within the dome.
Found in his pod, the humanoid has an abundance of pipes leading into his body from the surrounding machinery.