OK, I saw the film and have questions regarding various plot holes. **Spoilers** • So, that scene where the android activated the holograms of the spooked alien engineers running away from something, in the corridor into that room with the biological weapon canisters, what were they actually running away from, the Xenomorph Aliens? One could only assume that as previously they had seen those engraved hieroglyphs on the walls of what resembled a grotesque version of the Xenomorph Alien Queen and later on the 2 coward geologists found many corpses of the alien engineers with their chests burst open from the inside. But if that is the case, then what happened to the xenomorph aliens that were chasing them and killed them? • Where did that snake thing come from that killed the 2 geologists, as it wasn’t in that room when they 1st arrived and how did it survive thousands of years there without food, waiting for the humans to arrive? • Why did they pat an unknown and probably hostile alien snake living inside a sinister cave, instead of running away from it like hell, when previously they had expressed their fear of staying there any more than the should, since it was above their field as geologists? • In Alien 1, when Ripley’s crew arrived at the place and later on in Aliens 2 the terraforming colonists, how come no one noticed the human crash-landed escape pods and debris and that huge squid inside the pod that had devoured the alien engineer and what happened it? • In Alien 1 film, the huge room filled with xenomorph eggs was it in a different unexplored compartment of the horse-shoe space-ship and was that a another space jockey with its chest burst open? Because in Prometheus, after the ship crashed, the space jockey left the ship and came after the woman protagonist to kill her, only to get crushed to death by her squid child.