Our ocean floor is far less mapped than the surface of Mars. While satellite gravity data provides approximations visible on maps like Google Maps, these are largely estimations. Historically, sonar, pioneered by Marie Tharp, provided crucial early maps. Current efforts like Seabed 2030 utilize advanced sonar technology, autonomous underwater vehicles (AUVs), and AI to achieve a detailed map of the entire ocean floor by 2030, improving navigation, disaster prediction, and resource management. The project emphasizes collaboration across nations, despite potential concerns about resource exploitation. This segment focuses on the Seabed 2030 project, a global initiative aiming to map the entire ocean floor by 2030. It details the project's approach, including data acquisition from diverse sources (oil companies, environmental groups, militaries) and the use of cutting-edge technologies like autonomous underwater vehicles (AUVs) and AI. The segment also touches upon the potential benefits and concerns associated with improved ocean mapping. d This segment explains the innovative method of using satellite data to infer ocean floor topography by measuring subtle variations in the ocean's surface caused by underwater features. It then introduces sonar technology and its historical significance, highlighting the limitations of both methods and the need for more detailed data acquisition.