Hi ......
So as far as i can tell
A group of scientists working for yutani make an exciting discovery on earth concerning our origins and the origins of the universe but cannot fund the adventure so they join with weyland ( military contractors) and go off into space looking for our creators and paradise, Only to find a dead planet with a pyrymid/ spacecraft/ noahs ark type structure "chained" underground with no sign of life.
Upon having a look around and taking/stealing the urns of life back to their ship for further study ( anyone else notice the rack of chestbursters fassbenders lifting from the urns) alert the presence of the prisoners in the spacecraft which turn out to be crazy alien scientists that do nasty things to beautifull women , or will the dangers arise from fassbenders meddling with the contents of noahs ark?
I know a few things in alien will help towards some of the theorys on this site
A: ash knows the signal and knows it to be a warning
B:ash knows that what kane will be bringing back to the ship is extremely fast.
C: ash recognises both the facehugger stage and the chestburster phase
I dont think that the jockeycraft in prometheus will be the same derelict seen in alien, it probably uses a samey type signal though:) and i am thrilled to know that the original xeno will not be featured as i think the creature is no longer the perfect super intelligent ultimate survivor we only see in the 1st movie ( and a little of the 3rd )