Deep in the Arctic Circle, in Russia, lies the deepest hole ever dug which was once called 'the entrance to hell'. The Kola Superdeep Borehole is the deepest manmade hole, and deepest artificial ...

"Interestingly, the quasar powering this massive radio jet does not have an extreme black hole mass compared to other quasars ...

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 some majorly scary holes from around the world that you would ...

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 ...

Hole 93 is our deepest intersection to date, suggesting that the core zone remains open at depth... All key pieces in the process of growing Lion Zone!" – commented Ken Williamson, VP of Exploration.