A: Diana was the first attempt to build a facility on the moon that could be lived in. If the initial migration succeeded, there were plans to expand the scope of Diana, ultimately leading to several hundred million people making the move.
A: Probably about the same cost as a round-the-world trip. While lunar travel has become popular, it would still likely be too cost prohibitive for it to have spread all that much. This is why everyone aboard the passenger craft Aeolus when it crash lands on the moon is financially well-off.
A: It is reasonable to assume that the LIL Foundation were in charge of some of this as an organisation specialising in accident investigation. The LIL Foundation probably had an idea of where the Aeolus had come down, but perhaps, fearing that the public would discover the truth behind the accident that led to Diana being shut down and Hoshioka Materials' acquisition of the facility, they covered up the truth of the crash and stated it as lost instead.
A: About 100 workers were sent to the moon to work at the Hoshioka mine. As mining was always accompanied by danger there were several accidents resulting in deaths, causing more recruits to be forwarded on. Not a single one of them was able to return to Earth alive.
A: High transportation expenses were incurred in dispatching workers to the facility. When the dispatch craft returned to Earth, naturally the workers were left behind at the facility. The company, concluding that mining activities were not profitable, suspended the dispatch of a transportation craft to save them. The company abandoned every one of its workers.
A: The protagonist is asleep for six months. The Aeolus vanished in the early hours of 13/2 (the same date as its departure), and the crash itself occurred on 17/2 (Nancy awoke on 19/2). Communications with Earth were cut off on the day of departure, but this reality was covered up and hidden from the passengers by the captain, Dan Bertrand.
A: Not everyone who dies turns into a ghost. Those who have special emotions lingering in the world of the living or are unaware of their own deaths become ghosts. Norman died after leaving his feelings for Nancy in the notebook. Norman is an example of someone who managed to be at peace without ever turning into a ghost.
A: The Pollucs' parents died in the craft crash. They are also examples of people who didn't turn into ghosts.
A: Claudia meets the ghost of the chief (the real Richard) before meeting the protagonist. The chief is at peace after managing to reunite with Claudia. At this time he drops the red stone, which Claudia picks up and takes with her.
A: The grief and sorrow were too much for Claudia when she was informed by Hoshioka Materials that Richard had died at the facility, leading her to create an android in his image.
A: It's reasonable to think that Claudia's space trip (the spacecraft's crash) was an inevitability caused by the wish the chief (Richard) made upon the red stone.
Perhaps she felt a special affection for the android, despite knowing that he is not Richard, since he looks exactly like him.
A: I think she wished for him to return her remains to Earth.
Q: In terms of the level of technology, it's supposed to be mostly possible to create an android that looks exactly like a human. Pretty much where cloning is today. So I think they are at a stage where reproducing a dead person is possible, but it is a subject of controversy.
A: The notion is not one of death, but of a cessation of functioning.
A: This is the way he was programmed by Claudia.
A: The chief froze it.
A: His communications with headquarters were completely cut off from their side, meaning that he, like the other workers, was abandoned by the company and left with no means of returning.
A: Hoshioka hadn't dispatched any workers capable of properly using the machinery in the sick bay, so the area itself was pretty much useless to them. Because of this, you can imagine that they decided to reappropriate it as a jail, like a disciplinary room, since this would be a better use for it. Clark is just an average worker.
A: Clark picked up Descloizo's pocket watch after he dropped it in the sick bay.
A: It was Licia's evil spirit that killed Riskaya. Riskaya dropped it at the moment of her death, and Licia picked it up.
A: Hoshioka's head office shut off communications from their end, and the chief destroyed it in a fit of anger.
A: 2042. His cause of death was suicide by the red stone.
A: The space trip is a premarital trip for her and the android Richard. You can also think of it as a way for her to get closer to the place where (real) Richard is said to have died, even if only a little. I don't think the others had noticed that Richard is an android.
A: It belonged to Claudia. To her, the trip also served the role of being a report to (real) Richard, so you can think that she took it with her to show to him.
A: It's a funeral parlour. Its purpose was for sending the people who died within the facility back to Earth.
A: As far as the chief achieving success in exchange for Kenneth's life goes, you can think that it was required by the red stone. Regarding his fall, I'll leave it up to the player to decide.
A: All of the workers under the chief were aware of the fact that he was an android. However, whether or not he was "Kenneth" at the time is another matter.
A: I think so, yes.
A: I'll leave it up to the player to decide.
A: The Kenneth who died in a fall was human.
A: About connections with past games - Echo Night, Echo Night #2 and Nebula do not have directly linked stories, but are rather treated as running parallel to each other. So with regards to the red stone, ghosts and protagonist, they are the same (or quite similar), but different.