China's deep-sea manned #submersible #Jiaolong completed its first month-long trials on Tuesday following a technological upgrade. With improved batteries cutting charging time in half and a powerful 36x zoom lens, researchers can now observe deep-sea life in stunning detail - like the fine hairs on sea anemone tentacles!⁣ ⁣ #DeepSeaExploration #OceanScience #MarineTech #Innovation