Just finished reading an interesting fictional series of books Area 51 by Bob Mayer, Robert Doherty. The basic premise of the books is that Earth is visited by Aliens some 10,000 years ago and the Aliens brake into a number of faction with a resulting civil war, which ends in a uneasy truce, with thier suragates continuing a low level conflict into the present.
The series goes on to incorporate a number of legends, religious and historical events in the story. Many, of what we consider religious/legendary items, such as the Ark of the Covenant, the Grail, Excalibur, and people such as Moses, Jesus, King Arthur, Hitler are in fact Alien artifacts and Alien agents.
The series has plenty of action and is well thought out as fiction. So, what would be the affect on Judahism, Christianity, and Islam if we to discover that the Ark of the Covenant is an Alien artifact?