Researchers have found a blue hole they say is the deepest in the world—and they’ve yet to find where it bottoms out. The ...

A deep blue hole in the ocean in Mexico is the deepest known sinkhole in the world - and scientists haven't even been able to ...

Chinese researchers discovered what they say is the deepest blue hole in the world, off the disputed Paracel Islands in the South China Sea. The sinkhole was measured at 1,000 feet, deeper than ...

Scientists just discovered the deepest sinkhole in the world off the coast of the Paracel Islands, disputed territory in the South China Sea. The Sansha Yongle Blue Hole is almost 1,000 feet deep ...

EARTH is littered with terrifyingly deep, wide, and mysterious holes – and some are especially creepy. The Sun has rounded up ...

The Sun has rounded up some majorly scary holes from around the world that you would ... known as a "blue hole" – and is believed to be the deepest of its kind. The giant hole is 498 feet ...

America might have landed on the moon, but Russia drilled the deepest man-made hole on Earth. Since the early 1960s, scientists have attempted to drill down to the Earth's mantle. It took 20 years ...

Dean's Blue Hole is the second deepest sinkhole in the world and the deepest one filled with salt water. A habitat for a variety of fish, the sinkhole can be traversed by even novice swimmers and ...