Satellite Data Reveal Wealth of Hidden Tectonic Structures Using the latest data from satellites in space, scientists have uncovered uncharted features in the seafloor, 80% of which remains unmapped. The rifts, ridges and trenches of the ocean floor are shaped by the slipping and sliding of massive tectonic plates. In many parts of the ocean, however, including the region of the Indian Ocean where the Malaysian aircraft was lost this year, scientists don't know much about seafloor tectonics. Read more about this research from the 3 October issue of Science here. [Image courtesy of David Sandwell, Scripps Institution of Ocean ography. Please click here for more information.] © 2014 American Association for the Advancement of Science. All Rights Reserved.