President Donald Trump says the United States will share closely held technology to allow South Korea to build a nuclear-powered submarine. Trump made the announcement on social media after meeting ...

The decline of the reservoir threatens the water and electricity for 40 million people, but is resurfacing vast canyons and ...

A group that is pioneering underwater sculpture parks as a way to establish human-made coral reefs has deployed its first installation off Miami Beach. Last month, crews lowered 22 life-sized, ...