I wonder often about the close link between aliens and the figures of ancient mythology. Like the Fallen Angels... were they really fallen angels, whom people today misinterpret as being aliens? Or were they aliens all along, and the ancients simply lacked the knowledge to distinguish between angels, aliens, time travelers, hybrids, etc. ?
Another issue is that some aliens seem to use mythology-based code names that symbolically represent their roles. Like one might call herself Andromeda or Demeter or whatever. And when you look up what those myths were about, you find that they do indeed match, in an archetypal way, the role/situation/characteristics of that alien.
What adds further confusion is that some aliens might indeed have been the historical figures that eventually gave rise to myths based on them. Like the Greek goddess Astraea, or the Quetzalcoatl figure of meso-america. If they have long life spans and time travel abilities, the same alien from back then could be interacting with abductees/contactees today.
Astraea, the celestial virgin, was the last of the immortals to live with humans during the Golden Age, one of the old Greek religion's five deteriorating Ages of Man. According to Ovid, Astraea abandoned the earth during the Iron Age. Fleeing from the new wickedness of humanity, she ascended to heaven to become the constellation Virgo the nearby constellation Libra, reflected in her symbolic association with Justitia in Latin culture. In the Tarot, the 8th card, Justice, with a figure of Justitia, can thus be considered related to the figure of Astraea on historical iconographic grounds.
According to legend, Astraea will one day come back to Earth, bringing with her the return of the utopian Golden Age of which she was the ambassador.