First Appearance: Wonder Woman #224 (1976)
Creators: Martin Pasko and Jose Delbo
Abilities: Amazonian super strength, Amazonian super scientist, Amazonian longevity, talented astronomer.
Backstory: One of the great Amazons of Paradise Island who has been alive for thousands of years, Panthea was an Amazonian scientist who dedicated her focus into the field of astronomy, the study of the stars and planets.
Paradise Island being hidden away within the Bermuda Triangle and then further hidden away with a field of invisibility which was layered with a force field followed by a perpetual fog, was impossible for outsiders to find unaided. This was most perfect for secrecy and security. However it made using a telescope to gaze off into the sky a headache for someone whose focus was on the study of the skies.
Panthea experimenting with the forces which protected Paradise Island, attempted to create a gap within it to allow her to poke a telescope through. However the resulting backlash from such an effort was so great that the mysterious energies involved somehow shattered the legendarily unbreakable bracelets of the Amazons!
All Amazons being so bound by their bracelets that it was a piece of their mental state, this shattering of them left Panthea mentally unbalanced. Driving her to a state of madness. Convincing herself that Hippolyta was an enemy to all Amazons in keeping her from gazing out into the stars, Panthea plotted a way to kill both Diana and Hippolyta. Intending to become the islands new queen.
Placing clay fascimiles of her bracelets on to avoid suspicion, Panthea in secret began moving within the Amazons to remove the bracelets of several among her number, leading to them aligning with and serving her. Thus, Panthea would track planes flying over the Bermuda Triangle and lure them to crash into the force field guarding Paradise Island, destroying them in the hopes that this would cause the Americans to put Wonder Woman to death. All as she worked to corrupt the Amazons from within by removing their bracelets until she could overthrow Hippolyta. All because in her fragmented mind she was convinced that this was the only possible way she could properly enjoy star gazing and become a rising star in the field of astronomy!