Stunning New Footage Shows Mysterious Giant Deep-Sea ‘Phantom’ Jelly As Never Seen Before

This is where MBARI’s remotely operated devices come into the picture. Such vehicles have meant a great leap forward in learning about deep-sea life and MBARI’s ROV Doc Ricketts has now further added to our knowledge by providing the amazing footage below. The ROV spotted this giant phantom jelly in November 2021, at a depth of 990 meters (3,200 feet) in Monterey Bay. This deep-sea denizen has a bell that measures more than one meter (3.3 feet) across and trails four ribbon-like oral (or mouth) arms that can grow more than 10 meters (33 feet) in length.