Air bubbles within a deep ice core drilled in Antarctica could reveal why Earth suddenly began to experience longer ice ages nearly 1 million years ago.

Scientists drilled a 2-mile-deep ice core in Antarctica, allowing them to peer back in time at Earth's climate over 1.2 million years ago.

By drilling 1.7 miles beneath the icy surface, the team has pulled a 1.2 million-year-old ice core from Antarctic bedrock. The gases trapped in the core are expected to yield "high-resolution" insights into Earth's climate history.

The ice contains ancient air bubbles, which experts hope could help answer key questions about our planet's climate history. Find out more here.

An ice core was recently drilled out of the Antarctic continent and while it’s impressive in size, its scientific significance cannot be overstated. Experts say it could provide unprecedented climate data going back millions of years.

A colossal ice core sample drilled in Antarctica may contain the oldest, unbroken timeline of Earth's climate, stretching back more than a million years. Laid horizontally, the entire ice core's 2,800-meter (9,