I recently watched "Aldnoah.Zero" and started with "Aldnoah.Zero (2015)". I was wondering about one of the main elements in this anime.
Aldnoah is something that was found on Mars ("Vers" as it's called by the Martians) and is something old from an ancient civilization no one knows much about. They power up their "weapon systems" (mechs) with this thing too.
What is Aldnoah really? Is it some sort of stone, or some sort of energy? If it were just energy, they wouldn't have so advanced weapon systems, or not?
Where does the "Zero" in the name come from?