11/09/2026 | Heiner Kubny
The deepest hole on Earth is in the Arctic
Artist’s impression of the Kola Superdeep Borehole (SG-3) on Russia’s Kola Peninsula during its operational period. Using the massive Uralmash-15000 drilling rig, Soviet scientists aimed to penetrate up to 15 kilometres into the Earth’s crust. In 1989, they reached a record depth of 12,262 metres. (

