The Cool Down on MSN

Researchers investigate 'black box' discovered deep in caves of the Grand Canyon: 'Thousands of feet belowground'

"It's very hard to quantify what's going on in there." Researchers investigate 'black box' discovered deep in caves of the ...
The Daily Galaxy on MSN

This hidden cave system in Mexico just reclaimed the title of the world’s longest, and it’s still growing!

Ox Bel Ha, located beneath Mexico’s Yucatán Peninsula, has officially reclaimed its title as the longest underwater cave system in the world, stretching an astonishing 524 kilometers. This submerged ...