What is Paleoastronautics?
Paleoastronautics can be defined as the search for traces, in the form of particular archaeological finds, of presumed landings on Earth, in remote times, of extraterrestrial visitors. Because of this turning to the past, it can be considered part, or complement, of clipeology. However, it is clearly distinguished from it for two aspects: for its interest exclusively in documents of an archaeological nature, and for its disregard of any relationship with current ufological phenomenology.
Finds of this kind are, for example, the lines engraved on the sand of the Nazca desert (Peru), which only from the plane reveal themselves as the outlines of gigantic figures; the design carved on the tombstone found in 1952 in the interior of a step pyramid in Palenque (Mexico), drawing suggesting the idea of a man at the controls of a jet vehicle; the ancient depictions of the Oannes, the "fish-men" who according to Babylonian mythology would have been "divine instructors"; and so on.
However, it should be emphasized that these "spatial" interpretations remain at the level of pure and simple working hypotheses. The important thing is to ensure that imagination and fantasy do not end up taking over reason.