floor

Mars rover wraps survey of Jezero crater’s surprising volcanic floor | Science

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THE WOODLANDS, TEXAS—After a year exploring the floor of Mars’s Jezero crater, where it gathered seven—soon to be eight—chalk-size rock samples for return to Earth, NASA’s Perseverance rover is set to speed toward its longstanding target at the crater’s edge: the remnants of a delta, deposited by water billions of years ago, that may contain … Read more

DNA Shed by Deep-Sea Organisms Reveals a Dark Abyss Teeming With Tiny Life Forms

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Sweeping the ocean floor at hundreds of points throughout the world, researchers have revealed an astonishing diversity of microscopic life thriving in the deepest and darkest parts of our planet.   The sediment collected at each spot was analyzed for environmental DNA (eDNA), which marine animals shed as they go about their lives. While sea … Read more

Deep sea mining: Race to exploit the sea floor puts ecosystems at risk

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Governments are meeting in Jamaica this week to decide how rules for commercial mining of metals on the ocean floor will be thrashed out, but there are big sticking points Environment | Analysis 8 December 2021 By Adam Vaughan A field of manganese nodules in deep-sea waters near Hawaii NOAA Office of Ocean Exploration and … Read more