During a groundbreaking two-month expedition, scientists from the Minderoo-UWA Deep-Sea Research Centre at the University of Western Australia discovered a mysterious marine organism at the bottom of the Ryukyu Trench in the Philippine Sea, near Japan's Ryukyu Islands. Filmed at an astonishing depth of 29,977 feet (9,137 meters), the ghostly white creature resembles a translucent sea slug but has distinct lobes that prevent classification into any known phylum, earning it the designation Animalia incerta sedis. The team utilized the research vessel DSSV Pressure Drop and the crewed submersible Limiting Factor to explore three of Japan's deepest underwater canyons. In addition to the unknown organism, researchers identified over 1,500 stalked crinoids and carnivorous sponges, demonstrating the rich biodiversity present in these extreme environments. Chief scientist Professor Jamieson noted the surprising abundance of life in the trenches, despite the extreme pressures, and highlighted the presence of human debris, indicating the impact of human activity even in remote ocean depths. This study not only aims to document deep-sea organisms but also establishes a foundation for future explorations of the largely uncharted hadal zone.