When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Illustration by Julia Wytrazek / Getty Images There are about 500,000 abandoned mines in ...

From Europe to North America, an energy revolution is breathing new life into empty, long-forgotten coal mine shafts—by repurposing them into places to store renewable energy. Using "gravity batteries ...

NEW JERSEY — An unstable crater in the forest floor is just another reminder of the state's rich mining history and the many tunnels left behind and hiding just under the surface. Timothy Rack stands ...

Decades after underground coal mining all but ended in Eastern Pennsylvania, residents of certain areas continue today to face a hidden danger: mine subsidence. Gaping holes sometimes open without ...

That's the tricky challenge facing DOT officials as they try to repair three voids that appeared on Route 80 in February and March New Jersey DOT officials do not have accurate maps of where the ...

Hashima Island, also known as Gunkanjima (Battleship Island) for its silhouette, is an abandoned coal mining facility near Nagasaki. It was once one of the most densely populated places on the planet, ...