SAN JUAN, Puerto Rico (AP) — A Canadian company announced Tuesday that its U.S. subsidiary submitted applications to the National Oceanic and Atmospheric Administration to mine the seafloor ...

The remotely operated vehicle Deep Discoverer encountered a 49-foot-tall “solitary geological feature” while exploring the Pacific seafloor northeast of Kuailhelani on April 22. NOAA Ocean ...

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“What’s remarkable here is that we’ve found these human-made materials being incorporated into natural systems and becoming lithified – essentially turning into rock – over the course of ...

“What’s remarkable here is that we’ve found these human-made materials being incorporated into natural systems and becoming lithified – essentially turning into rock – over the course of decades ...

This was echoed by the Washington-based group Ocean Conservancy, whose vice-president Jeff Watters noted that areas of the US seafloor subject to test mining 50 years ago have yet to fully recover.