The Deepest Hole In The World and What We've Learned From It. The Kola Superdeep Borehole

The Deepest Hole In the World, Kola Superdeep Borehole

It is amazing that as of today, 2023, no one has drilled into the earth any further than the Soviet Union in the Pechengsky District did on the Kola Peninsula, ending the digging in 1989. Drilling into the Earth's crust brought about astounding new information dating back billions of years, and that was only digging into a fraction of the Earth's crust.

The Kola Superdeep Borehole began drilling on May 24, 1970, and is to date the deepest manmade hole in history. The deepest reached is 12,262 meters (40,230 ft; 7.619 mi) in 1989, the deepest human-made hole on Earth, and remains so as of 2023.

The video below (short) presents the details of the dig and the findings. 

Hunga Tonga volcano eruption forms new S Pacific island

Volcano eruption forms new island

• 12 March 2015
   By Roland Hughes
  BBC News

The new island is some 500m across and 250m high

A new island has been formed in the South Pacific after the eruption of an underwater volcano in Tonga.

Images have emerged of the island's surface, 45km (28 miles) north-west of Tonga's capital, Nuku'alofa.

The island - which is 500m (1,640 feet) long - was formed after an eruption at the Hunga Tonga volcano that started in December.