China has officially launched its first domestically-built deep-ocean drilling vessel, Mengxiang, marking a significant milestone in ocean exploration. In a congratulatory letter sent during the vessel's commissioning, President Xi Jinping highlighted its world-leading drilling capabilities, which will enable scientists to explore the Earth's crust and uncover the secrets of the ocean floor. The Mengxiang is not just a drilling ship; it also serves as a floating hub of technological innovation.