Blog

• The deepest hole ever drilled is the Kola Superdeep Borehole, on the Kola peninsula in the northwest corner of Russia, located near Finland. It was drilled for scientific research by the USSR. Like many large research holes, it had a number of offshoots from the central branch, and the deepest, SG-3, was 7.6 miles (12.262 km) deep.

• When drilling stopped in 1994, the hole was over seven miles deep (12,262 meters), making it by far the deepest hole ever drilled by humankind. The last of the cores to be plucked from from the borehole were dated to be about 2.7 billion years old, or roughly 21 million times older than Coca Cola.

• The deepest hole ever dug is the 12.262 km Kola borehole in northern Russia. It seems vaguely disappointing that even today, we have yet to travel more than a fifth of one percent of the way into our planet.

Boreholes were drilled by branching from a central hole. The deepest, SG-3, reached 12,262 metres (40,230 ft) in 1989 and is the deepest artificial point on Earth, as of September 2018. The borehole is 23 centimetres (9 in) in diameter.

The deepest hole ever drilled is the Kola Superdeep Borehole, on the Kola peninsula in the northwest corner of Russia, located near Finland. It was drilled for scientific research by the USSR. Like many large research holes, it had a number of offshoots from the central branch, and the deepest, SG-3, was 7.6 miles (12.262 km) deep.

When drilling stopped in 1994, the hole was over seven miles deep (12,262 meters), making it by far the deepest hole ever drilled by humankind. The last of the cores to be plucked from from the borehole were dated to be about 2.7 billion years old, or roughly 21 million times older than Coca Cola.

The deepest hole ever dug is the 12.262 km Kola borehole in northern Russia. It seems vaguely disappointing that even today, we have yet to travel more than a fifth of one percent of the way into our planet.