Scientists to investigate mysterious underwater sinkhole off Florida coast

(Natural News) Scientists are gearing up for an expedition deep off Florida’s gulf coast in August. The scientists, with help from the National Oceanic and Atmospheric Administration (NOAA), are looking to probe the Green Banana — a mysterious blue hole that begins 155 feet below the ocean’s surface. Blue holes are underwater sinkholes that form when rainwater dissolves a hole through limestone rock. They are...