rich 1.0 On July 10, the National Oceanic and Atmospheric Administration's Okeanos Explorer completed a 69-day, 3-stage expedition of previously unknown and poorly understood deepwater habitats. The first leg, exploring the southern half of the Marianas Trench Marine National Monument and the Commonwealth of the Northern Mariana Islands, wrapped up on May 11. TIME's Top Stories https://audioboom.com/channels/3380207-time-s-top-stories Audioboom https://audioboom.com 480 95 https://audioboom.com/i/23091441/600x600/c 600 600 <iframe width="100%" height="95" src="https://embeds.audioboom.com/posts/4809359/embed?v=202301" style="background-color: transparent; display: block; padding: 0; width: 100%" frameborder="0" allowtransparency="allowtransparency" scrolling="no" title="Audioboom player" allow="autoplay" sandbox="allow-downloads allow-forms allow-popups allow-same-origin allow-scripts allow-storage-access-by-user-activation allow-top-navigation-by-user-activation"></iframe>