If aliens exist and have travelled unfathomable distances across the universe to our planet, it makes sense that they would use a language and letter system unrecognisable to us.
This picture shows the symbols Jesse Marcel Jr. remembers from the incident in July 1947. According to both Jesse Sr and his son, the hieroglyphics were solid and glowing purple.
Did he fabricate these symbols, or are they fragments of an alien language? If they were real, did they have some important message, or were they the equivalent of an intergalactic Ferrari sticker?