ICECORE

The largest and deepest ice cores ever drilled come from Antarctica, with the European Project for Ice Coring in Antarctica (EPICA) drilling one of the most notable cores.

At a depth of 3,270 meters (10,728 feet), this core, extracted from Dome C, contains ice dating back about 800,000 years.

Another significant core is from the Russian-led Vostok Station, where a core reaching 3,768 meters (12,362 feet) was drilled, providing climate data for over 400,000 years.

These deep ice cores are crucial for studying Earth's past climate, capturing information on atmospheric composition, temperature changes, and greenhouse gas concentrations over hundreds of thousands of years.

Their depths are limited by the underlying bedrock, making such drilling feats engineering marvels in extreme polar conditions.