“The being that would one day be called the Invisible Plane began life as an alien “morphing crystal” circling a distant planet with its “family”, other morphing crystals who are collectively called the Ring. In their natural state, the Plane and its fellow members of the Ring resemble eggs made of semi transparent plastic. In time, it was separated from its family and was found by the Lansinarians, a blind subterranean race that lived underneath Antarctica. The Lansinarians could not react quickly enough to changes in their environment. Thus, they developed the morphing crystal they had found into a life support device that catered to their needs. These beings later bestow the device on Wonder Woman in gratitude for saving them. The plane, which possesses a sophisticated artificial intelligence, responds to Wonder Woman’s thoughts. It is able to render itself invisible as well as alter its shape, transforming into any form of vehicle its bearer desires, be it a jet, submarine, motorcycle, or horse-drawn chariot.
Wonder Woman, however, was initially unaware that her Invisible Plane was not only alive but was quite aware that it was being treated by its mistress as a lifeless tool.” RTWT at: Invisible plane – Wikipedia
Now on Display: Wonder Woman’s Invisible Jet at the National Air and Space Museum