What country's new ocean-drilling vessel, Meng Xiang, is expected to begin its first expedition in 2026, aiming to drill up to 11 km into the oceanic crust?

China is the country behind the new ocean-drilling vessel, Meng Xiang, which is expected to embark on its first expedition to drill up to 11 kilometers into the oceanic crust. The vessel, whose name means "dream" in Chinese, was officially commissioned in November 2024 and is designed to carry out an unprecedented mission: piercing through the Earth's crust to reach the upper mantle. This ambitious endeavor aims to provide scientists with direct evidence to study plate tectonics, oceanic crust evolution, ancient marine climates, and the evolution of life.

The Meng Xiang is a marvel of engineering, boasting a maximum drilling depth of 11,000 meters (11 km), which surpasses the capabilities of previous scientific drilling ships like the retired US vessel JOIDES Resolution and Japan's Chikyu. It is equipped with advanced drilling systems, including a specialized hydraulic drilling rig capable of both oil and gas exploration and core sampling. The ship is also designed for sustained operations, able to operate autonomously for 120 days and cover a range of 15,000 nautical miles, making it suitable for extended missions in diverse marine environments.

Deep ocean drilling programs have a rich history, dating back to the 1950s, and have been crucial in supporting theories like seafloor spreading and plate tectonics. The data collected from these expeditions helps researchers understand Earth's paleoclimatic and paleoceanographic changes over millions of years. The Meng Xiang's mission to penetrate the Mohorovičić discontinuity, the boundary between the crust and the denser mantle below, represents a significant leap forward in this field, potentially offering new insights into the composition, formation, and evolution of Earth's crust.