After being collected in 1966, however, the subglacial core sample—about 12 feet of frozen mud and bedrock from below the ice—was stored in an Army lab freezer, then at the University of Buffalo.

Scientists have drilled 1.7 miles deep into Antarctica, pulling up an ice core sample that dates back at least 1.2 million years. They expect the sample to offer new insights into the evolution of ...

An ice core is a core sample from the accumulation of snow and ice over many years that have recrystallized and have trapped air bubbles from previous time periods. The composition of these ice ...

Scientists working in the Allen Hills region of Antarctica have drilled the oldest ice core ever. Dating back an estimated 2.7 million years, this ice sample is more than 1.5 million years older ...