They were rolling in the deep. Scientists have identified what could potentially be the “deepest known blue hole” in the world, extending so far down that the bottom has not yet been reached.

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 ...

The closing has nothing to do with the reduction in pollution caused by having much of the world on COVID-19 lockdown. The largest hole ever observed in the ozone layer over the Arctic has closed ...