Australia's closest neighbor, Papua New Guinea, is a place of remarkable cultural diversity. Home to cultures speaking more ...

A tsunami warning was issued for Papua New Guinea following a powerful 6.9 magnitude earthquake, the U.S. Geological Survey reported. The tsunami warning was rescinded just after 7 p.m. ET on Friday.

The kind of deep-sea mining that we've examined this week is only legally permitted inside a country's territorial waters. The only country on earth to allow it so far is Papua New Guinea.

A geologist from Papua New Guinea, meanwhile, photographs this haul, then gets to work assessing the concentration in these rocks of metals like copper, so crucial to the global energy transition.