Far below the crowded overlooks and shuttle stops of Grand Canyon National Park, researchers have been probing a very different kind of attraction: a hidden “black box” in the rock that controls how ...

"It's very hard to quantify what's going on in there." Researchers investigate 'black box' discovered deep in caves of the Grand Canyon: 'Thousands of feet belowground' first appeared on The Cool Down ...

The origin story of Hells Canyon, North America's deepest river gorge, has long been unclear to scientists. But new research estimates it formed about 2.1 million years ago when a dramatic flood event ...

Every year at Grand Canyon National Park, millions of visitors from all over the world stop at one of a dozen water spigots. Most people are on a rim, seeing the canyon's majesty for the first time, ...